1 L*atm = 101.325 J. what is it called when the system transfers energy as heat to the suroundings. exothermic. what is the value of q and U in an exothermic reaction. negative. what is it called when the system gains energy as heat from the surroundings. endothermic.Learn how Sanders Consulting Group created a client personality profiling system. Trusted by business builders worldwide, the HubSpot Blogs are your number-one source for education...Quizlet has study tools to help you learn anything. Improve your grades and reach your goals with flashcards, practice tests and expert-written solutions today. ... Use Quizlet for AQA GCSE Chemistry to learn about everything from Ionic Compounds to Nanoscience. Discover curriculum-aligned practice question sets for the entire AQA Chemistry ...1.1 Chemistry in Context. 1.2 Phases and Classification of Matter. 1.3 Physical and Chemical Properties. 1.4 Measurements. 1.5 Measurement Uncertainty, Accuracy, and Precision. 1.6 …According to the Bronsted Lowry definition, some substances can act as acids or bases (are called amphoteric) For example: NH3 + H2O ---> NH4+ + OH-. (base) (acid) Reverse Reaction: NH4+ + OH- ---> NH3 + H2O. (acid) (Base) In this reaction the the base (NH3) in the forward reaction becomes an acid in the reverse reaction which is an example of ... a homogeneous mixture of two or more substances. phase. (physical chemistry) a distinct state of matter in a system. filtration. the process that separates a solid from the liquid in a heterogeneous mixture. distillation. the process of purifying a liquid by boiling it and condensing its vapors. element. 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Physical Change.a chemical bond that involves sharing a pair of electrons between atoms in a molecule. covalent bond (types of elements) two or more nonmetals. covalent bond (aka) molecular bond (aka) molecular compounds (properties) 1. can be solid, liquids or gases. 2. lower melting and boiling points. 3. not electrolytes.element that lacks most of the properties of a metal, is not shiny, does not conduct electricity or heat well, is not malleable so it is called brittle or breakable. Proposed the Atomic Theory to describe the atom. Study with Quizlet and memorize flashcards containing terms like atom, nucleus, proton and more.Use Quizlet for CCEA GCSE Chemistry to learn about everything from Structures to Solubility. Discover curriculum-aligned study sets and learning activities for the entire CCEA Chemistry curriculum below. VERIFIED CONTENT. Accurate resources save you time. SPECIFICALLY FOR THE CCEA SPEC. a chemical substance formed as a result of a chemical reaction. 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MATTER. is any substance that occupies space and has mass (weight) 3 forms of matter: solid, …The formation of one product, that is the polymer. Condensation polymerisation. A reaction in which there are two products, the polymer and a small molecule, e.g. water. Non-biodegradeable. Not broken down in the environment by micro-organisms in the presence of water and oxygen. Here's all the definitions you will need for CIE IGCSE Chemistry ...It is impossible to simultaneously know the position and momentum of an electron. Attributed a wave function to electrons, describing the probability of where an electron might exist. Study with Quizlet and memorize flashcards containing terms like John Dalton, J.J. Thompson, Robert Millikan and more. Study with Quizlet and memorize flashcards containing terms like Which of the following situations involves "chemical property"? A. All are correct B. Oil floats on top of water because it has a lower density than water. C. 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Not malleable, heat poorly, no electricity.chemistry. the study of matter, its properties, and the reactions or changes it undergoes. physical standard. a physical item used as a standard for measurement. standard. something established by authority as a rule for a measurement. unit. a specified quantity with which any other quantity of the same kind is measured. Atom. the basic (and smallest) unit of a chemical element. Made up of three parts, proton, electron, neutron. Atomic radius. the average sitance from the centre of an atom's nucleus to its electrons in the farthest orbital. Boiling Point. the temperature at which a liquid boils and turns to vapor (100°C). Study with Quizlet and memorize flashcards containing terms like sea of electrons, metallic bonds, alloys and more. ... Chapter 7.1 chemistry quizlet. Teacher 12 terms. Danielle_Rekart8. Preview. Unit 2 Chemistry Exam . 22 terms. elizabeth_cook683. Preview. 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A chemical reaction that has the general formula of AB + C → CB + A is best classified as a__________ reaction. replacement. A chemical reaction that has the general formula of nA → (A)n is best classified as … 6. Organic Chemistry. the study of most carbon containing compounds. Inorganic Chemisry. study of non-organic substances. Physical Chemistry. the study of properties and changes of matter and their relationship to energy. Analytical Chemistry. identification of the components and composition of materials. Terms in this set (20) a pure substance formed from atoms two or more elements with the same limited resources. a pure substance formed by a non-metal and a metal. a bond formed by the simultaneous attraction of two nuclei for a shared pair of electrons. a pure substance form by non-metals. a solution containing a high ratio of solute to solution.Most of us have learned the hard way that there’s a certain technique to pouring our beer without making it overflow and ruin everything. You have to strategically tilt the glass a...Group 7, halogens. Which group of the periodic table includes helium, neon and argon? Group 0, noble gases. What information does a chemical formula provide? Which elements are bonded together, and how many atoms of each are present. What is a mixture? Two or more elements or compounds not chemically bonded together.According to the Bronsted Lowry definition, some substances can act as acids or bases (are called amphoteric) For example: NH3 + H2O ---> NH4+ + OH-. (base) (acid) Reverse Reaction: NH4+ + OH- ---> NH3 + H2O. (acid) (Base) In this reaction the the base (NH3) in the forward reaction becomes an acid in the reverse reaction which is an example of ... Test your knowledge of chemistry basics with this set of flashcards created by Bobbie_Schechinger. Learn terms such as matter, scientific method, density, phase changes, and more. Use Quizlet for AQA GCSE Combined Science Chemistry to learn about everything from ionic compounds to nanoscience. Discover curriculum-aligned study sets and learning activities for the entire AQA Combined Science Chemistry curriculum below.Elements that exist as a diatomic molecule. 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Preview. Periodic table Test. 50 terms. A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial. combustion reaction. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. synthesis reaction. energy. The ability to do work or cause change. nutrient. chemical substance that an organism needs to sustain life. chemical change. substance changes to new substance that involves changes in the arrangement of atoms, molecules or ions. Study with Quizlet and memorize flashcards containing terms like Chemical Energy, Matter, Atom and more. Exercise 5. At Quizlet, we’re giving you the tools you need to take on any subject without having to carry around solutions manuals or printing out PDFs! Now, with expert-verified solutions from Modern Chemistry 1st Edition, you’ll learn how to solve your toughest homework problems. Our resource for Modern Chemistry includes answers to ... Check all that apply. synthesis. polymerization. oxidation. A chemical reaction that has the general formula of AB + C → CB + A is best classified as a__________ reaction. replacement. A chemical reaction that has the general formula of nA → (A)n is best classified as …Chemistry. Science that deals with the composition, structures, and properties of matter, and how matter changes under different conditions. Organic chemistry. The study of substances that contain the element carbon. Inorganic chemistry. The study of substances that do not contain the element carbon, but may contain the element hydrogen. Matter.atoms are composed of three subatomic particles known as protons, neutrons and electrons. Orbital. a region of space around the nucleus where an electron is likely to be found. Nucleus. -center of an atom. -contains both protons and neutrons. -overall charge is positive. -very small. …Chemical Properties. A substance's ability to form new substances; characteristics that determine how the composition of matter changes as a result of contact with other matter or the influence of energy. Examples: Flammability, rusting of steel, and the digestion of food. Physical Change.capable of being dissolved. Solution. a homogeneous mixture of two or more substances in a single phase. Solvent. the dissolving medium in a solution. Suspension. when the particles in a solvent are so large that they settle out unless the mixture is constantly stirred or agitated. Colloids. has particles that are intermediate in size between ...Use Quizlet for GCSE Chemistry to learn everything from the Edexcel specification. Discover curriculum-aligned study sets and learning activities by ...Study with Quizlet and memorize flashcards containing terms like Atom, Nucleus, Subatomic and more.Firefighters need a strong understanding of chemistry for personal and public safety, to enhance the effectiveness of their efforts and to prevent adding to the many hazards presen...95 terms. Haley_Rivillas3. Preview. Find Organic Chemistry flashcards to help you study for your next exam and take them with you on the go! With Quizlet, you can browse through thousands of flashcards created by teachers and students — or make a set of your own!revealed 3 types of radiation: alpha, beta, and gamma. Thomson. had "plum pudding model". proposed that the atom consisted of a uniform positive sphere of matter in which the electrons were embedded. Rutherford. 1911 most of mass of the atom and all of its positive charge resided in a very small extremely close region called nucleus. The ChemQuiz.net Dashboard is a Learning Management System that teachers can purchase for US$50 per year to assign practice quizzes to their students and keep track of their progress. If you’re a teacher or tutor, get a free demo account to the ChemQuiz.net Dashboard now! If you have any questions at all, please contact me using this form ... Femptochemistry - the area of physical chemistry that studies chemical reactions on extremely short timescales. Oenology - the study of wines. Petrochemistry - the study of rocks/oil. Phytochemistry - the study of plants. Thermochemistry - the study of heat. Sonochemistry - the study of sound. Define: Mole. A mole is a unit used to express numbers of small particles such as atoms, molecules, ions, formula units, nuclei, ext. Another name for the number of particles in a mole. Avogadro's number. Define: representative particles. The term used to indicate particles of different types of substances. What type of substance has atoms as a ... Made of small particles, moves faster, and far apart. What is real a gas? Real gas doesnt follow al the 5 ideal gases. How is tempature and and average kinetic energy related? K.E. = 1/2 mv^2. What is the relative difference between the three states of matter? 1) Align the decimal points. 2) Add or subtract. 3) Round the final answer to the rightmost column in which all numbers have significant figures. Sig Figs- Multiplication and Division. Multiply or divide the number. 2) Determine the number of sig figs in each of the original numbers. 1.1 Chemistry in Context. 1.2 Phases and Classification of Matter. 1.3 Physical and Chemical Properties. 1.4 Measurements. 1.5 Measurement Uncertainty, Accuracy, and Precision. 1.6 … A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial. combustion reaction. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. synthesis reaction. Chemistry quizlet
Quizlet has study tools to help you learn anything. Improve your grades and reach your goals with flashcards, practice tests and expert-written solutions today. ex. the final temperature of water when 10.0 g of aluminum originally heated to 125C added to 100.0 g of water whose original temperature was 25.0C. mCp (delta)T=mCp (delta)T. (delta)U. the change in energy of the system; (delta)U=Q+W; q=heat, w=work. Study with Quizlet and memorize flashcards containing terms like chemistry, 5 branches of ...Terms in this set (33) The smallest unit of matter; composed of protons, neutrons and electrons. The number of protons in an atom; identifies the atom/element. The mass of an atom; calculated by adding the number of protons plus the number of neutrons. A bond created when electrons are donated between atoms, creating opposite charges.This online quiz is intended to give you extra practice in concepts related to introductory organic nomenclature, including naming compounds and identifying functional groups from diagrams. …Example of Chemical in Matter. Souring of Milk. Rusting of Iron. Bursting of wood. Cremation of Remains. Decomposition of Remains. Embalming or Preservation I. Study with Quizlet and memorize flashcards containing terms like Chemistry, Inorganic Chemistry, Organic Chemistry and more.Professor Jean-Jacques Helesbeux is seeking a fellow for MSCA PF 2024 in Medicinal Chemistry in SONAS Laboratory from the University of Angers, France. About …Group 6. Metalloids. Ionic Radius: Cations. Positive charge, lost electrons, gets smaller. Ionic Radius: Anions. Negative charge, gained electrons, gets bigger. Melting/Boiling Point. Highest in the middle of a period. Study with Quizlet and memorize flashcards containing terms like Electron Affinity, Across a Period: Electron Affinity, Down a ...element that lacks most of the properties of a metal, is not shiny, does not conduct electricity or heat well, is not malleable so it is called brittle or breakable. Proposed the Atomic Theory to describe the atom. Study with Quizlet and memorize flashcards containing terms like atom, nucleus, proton and more.1.Electrospray Ionization. sample vaporized and put into a small capillary tube and high voltage is applied causing the atoms to lose an electron and making the sample a mononuclear gas. 2.Acceleration. Ions accelerated by an electric field, smaller ions travel faster.atom. the smallest unit of an element that can exist either alone or in combination. covalent bond. a chemical bond formed between atoms as a result of sharing a pair of electrons. compound. a substance composed of two or more elements combined in definite proportions. carbohydrate. organic compound that that contains only carbon, hydrogen, and ...chemistry | Quizlet. Quizlet has study tools to help you learn anything. Improve your grades and reach your goals with flashcards, practice tests and expert-written solutions today.element that lacks most of the properties of a metal, is not shiny, does not conduct electricity or heat well, is not malleable so it is called brittle or breakable. Proposed the Atomic Theory to describe the atom. Study with Quizlet and memorize flashcards containing terms like atom, nucleus, proton and more.Study with Quizlet and memorize flashcards containing terms like Atomic Theory, endothermic takes in energy (ice melting) and exothermic gives off heat (match lighting), electron cloud and more. ... Chemistry Practice Test Multiple Choice Questions. 20 terms. katemyoung3. Preview. Chem test . 55 terms. prh13747. Preview. Chemistry Quiz 8. 91 ...Energy is absorbed in a chemical reaction (entering) What is temperature? It is the measure of the average kinetic energy of molecules. The higher the temperature, the more what? Kinetic energy the molecules have. Study with Quizlet and memorize flashcards containing terms like What is energy?, What is chemical energy?, What is electrical ...Got some vocab words you need to learn? Try Quizlet, a free interactive learning tool. Got some vocab words you need to learn? Try Quizlet, a free interactive learning tool. Here's...Students also viewed ... Anything that has mass and takes up space. Substance. A single kind of matter that is pure and has a specific set of properties. Physical ...Increasing temperature causes the kinetic energy to increase. Thus, molecules are moving faster and colliding more frequently. This causes the rate of reaction to incrase.Use Quizlet for CCEA GCSE Chemistry to learn about everything from Structures to Solubility. Discover curriculum-aligned study sets and learning activities for the entire CCEA Chemistry curriculum below. VERIFIED CONTENT. Accurate resources save you time. SPECIFICALLY FOR THE CCEA SPEC.a charged atom that has either gained or lost an electron to become fulfilled. Sodium ion. a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion. a compound made of oppositely charged ions. Formed between metal and non-metal elements.Made of small particles, moves faster, and far apart. What is real a gas? Real gas doesnt follow al the 5 ideal gases. How is tempature and and average kinetic energy related? K.E. = 1/2 mv^2. What is the relative difference between the three states of matter?When molecules are close together, a slight attraction can develop between the oppositely charged regions of nearby molecules. It's named after the scientist ...Study with Quizlet and memorize flashcards containing terms like Name the scientist who arranged the elements in order of increasing atomic mass, The modern periodic table is arranged in order of increasing, A row on the periodic table is called a and more. ... Chemistry Final Exam Guide. 83 terms. kaylanarnold. Preview. Unit 4: Chemistry. 29 ...Study with Quizlet and memorize flashcards containing terms like Name the scientist who arranged the elements in order of increasing atomic mass, The modern periodic table is arranged in order of increasing, A row on the periodic table is called a and more. ... Chemistry Final Exam Guide. 83 terms. kaylanarnold. Preview. Unit 4: Chemistry. 29 ... chemistry | Quizlet. Quizlet has study tools to help you learn anything. Improve your grades and reach your goals with flashcards, practice tests and expert-written solutions today. the mass of the neutron nearly equals the mass of a proton. dalton's atomic theory included what idea. atoms of the same element are always identical. amu. one-twelfth the mass of a carbon atom having 6 protons and 6 neutrons. atomic mass. the weighted average of the masses of the isotopes of an element. A pure substance that cannot be broken down into any other substances by chemical or physical means. Atom. The basic particle from which all elements are made. Chemical Bond. A force of attraction between two atoms. Molecules. Groups of two or more atoms held together by chemical bonds. Compound. Terms in this set (87) Chemistry. the branch of science that deals with the study of the composition, structure, and properties of matter and the changes which matter undergoes. physical chemistry. the branch of chemistry which deals with applying the theories of physics to the study of reactions and properties of matter. organic chemistry. Ion-Ion. Viscosity. a measure of a fluid's resistance to flow. Surface Tension. the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together. Study with Quizlet and memorize flashcards containing terms like Ionic Compound, Covalent Compound, The Ideal Gas Law and more.According to the Bronsted Lowry definition, some substances can act as acids or bases (are called amphoteric) For example: NH3 + H2O ---> NH4+ + OH-. (base) (acid) Reverse Reaction: NH4+ + OH- ---> NH3 + H2O. (acid) (Base) In this reaction the the base (NH3) in the forward reaction becomes an acid in the reverse reaction which is an example of ...all halogen atoms have ___ valence electrons and need to gain ____ electron/s to achieve the configuration of a noble gas. 7, 1. Define ionic compound. a compound composed of anions and cations. Although they are composed of ions, ionic compounds are: a. positively charged. b. electrically neutral. c. negatively charged.acid+base→H₂O+salt. strong. donates/recieves hydrogen easily. weak. doesn't donate/recieve hydrogen easily. isotopes. an element can have many different _________ with different masses, but the same # of electrons and protons. This Quizlet has questions, not problems. If you need to practice problems get off Quizlet and make up your own.1811. State Avogadro's hypothesis. At the same temperature and pressure, equal volumes of different gases contain the same number of particles. ("Avocados will give you a volume of gas.") Taken together with Gay-Lussac's research with the formation of water, Avogadro's hypothesis means that: Exercise 5. At Quizlet, we’re giving you the tools you need to take on any subject without having to carry around solutions manuals or printing out PDFs! Now, with expert-verified solutions from Modern Chemistry 1st Edition, you’ll learn how to solve your toughest homework problems. Our resource for Modern Chemistry includes answers to ... A reaction in which one element replaces another in a compound or when two elements in different compounds trade places. Can be single and double replaced atoms. A reaction in which two or more substances combine to form a new compound. Study with Quizlet and memorize flashcards containing terms like Aqueous substance, Catalyst, Chemical bond ... Study with Quizlet and memorize flashcards containing terms like Which of the following situations involves "chemical property"? A. All are correct B. Oil floats on top of water because it has a lower density than water. C. On a hot day, water evaporates at a faster rate than on a cold day. D. Propane gas is flammable which means it is easily combusted., Perform calculations and report the ... Study with Quizlet and memorize flashcards containing terms like electron cloud, Where an electron is will be determined by _____., Electron Cloud Model and more. ... Chemistry- Enthalpy, Entropy, and Free Energy . 13 terms. lhalfen. Preview. CHEM chp 6. 9 terms. ocharron1. Preview. chem- energy forms. 12 terms. maasre223. Preview. chem 104 ...IT comes from protons, neutrons, and electrons. It is determined by taking the average of all the masses of that atom, including all relevant isotopes. Isotopes. atoms with different #'s of neutrons, but same # of protons. Chemical properties of elements are determined by. the number of electrons and protons. Ion. A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial. combustion reaction. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. synthesis reaction. Study with Quizlet and memorize flashcards containing terms like polar, non-polar, acid and more.Elements that exist as a diatomic molecule. H₂, N₂, O₂, F₂, Cl₂, Br₂, I₂ (last 4 are halogens) Study with Quizlet and memorize flashcards containing terms like Define chemistry, Identify and describe the steps in the scientific method., Explain the relationship between a theory, law, and hypothesis. and more.1: Introduction to Chemistry.With Quizlet, you can browse through thousands of flashcards created by teachers and students — or make a set of your own! ... Chemistry - Quiz 2: Golden years to periodic table. 14 terms. torikdowns20. Preview. Chemistry Vocabulary. 38 terms. Brennan_Davis25. Preview. Periodic table Test. 50 terms. catalyst. substance added to reaction that increases the reaction by lowering the amount the activation energy. inhibitor. substance that slows the rate of reaction by interfing with the reactants coming together. Study with Quizlet and memorize flashcards containing terms like chemistry, matter, element and more. The ChemQuiz.net Dashboard is a Learning Management System that teachers can purchase for US$50 per year to assign practice quizzes to their students and keep track of their progress. If you’re a teacher or tutor, get a free demo account to the ChemQuiz.net Dashboard now! If you have any questions at all, please contact me using this form ... Go to the first set you want to use. Select (More menu). Select Combine. On the Combine sets page, add sets by selecting the + icon. Select Create a set from the dropdown menu on the left. Select Go to save your combined set. To start studying the two sets without saving them as a new set, select the study mode you want from the dropdown menu ...Use Quizlet for CCEA GCSE Chemistry to learn about everything from Structures to Solubility. Discover curriculum-aligned study sets and learning activities for the entire CCEA Chemistry curriculum below. VERIFIED CONTENT. Accurate resources save you time. SPECIFICALLY FOR THE CCEA SPEC.1811. State Avogadro's hypothesis. At the same temperature and pressure, equal volumes of different gases contain the same number of particles. ("Avocados will give you a volume of gas.") Taken together with Gay-Lussac's research with the formation of water, Avogadro's hypothesis means that:chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and … Test your knowledge of chemistry basics with this set of flashcards created by Bobbie_Schechinger. Learn terms such as matter, scientific method, density, phase changes, and more. Aromatic Hydrocarbon. Contain at least one benzene ring or similar structural features. Benzene. Consists of a ring of six carbon atoms with alternating single and double carbon-carbon bonds. Organic chemistry in terms of chemical substances and chemical formulas. Learn with flashcards, games, and more — for free. 2 or more atoms joined together by a chemical bond. molecules. molecule composed of 2 or more different kids of atoms. compound. substances of 2 or more molecules interact and undergo a chemical change. chemical reaction. occurs when monomer come together with other monomers in chemical reaction to form polymer chains. catalyst. substance added to reaction that increases the reaction by lowering the amount the activation energy. inhibitor. substance that slows the rate of reaction by interfing with the reactants coming together. Study with Quizlet and memorize flashcards containing terms like chemistry, matter, element and more. Learn how Sanders Consulting Group created a client personality profiling system. Trusted by business builders worldwide, the HubSpot Blogs are your number-one source for education...revealed 3 types of radiation: alpha, beta, and gamma. Thomson. had "plum pudding model". proposed that the atom consisted of a uniform positive sphere of matter in which the electrons were embedded. Rutherford. 1911 most of mass of the atom and all of its positive charge resided in a very small extremely close region called nucleus.1.1 Chemistry in Context. 1.2 Phases and Classification of Matter. 1.3 Physical and Chemical Properties. 1.4 Measurements. 1.5 Measurement Uncertainty, Accuracy, and Precision. 1.6 …neutron. a subatomic particle that has no charge and that is found in the nucleus of an atom. nucleus. the central core of the atom, containing protons and usually neutrons. period. a horizontal row of elements in the periodic table. group/family. a vertical column of elements in the periodic table. periodic. chemistry | Quizlet. Quizlet has study tools to help you learn anything. Improve your grades and reach your goals with flashcards, practice tests and expert-written solutions today. Test your knowledge of chemistry basics with this set of flashcards created by Bobbie_Schechinger. Learn terms such as matter, scientific method, density, phase changes, and more. a measure of the amount of matter in an object. chemical reaction. rearranges elements and forms new substances,it also give off heat or absorbs. compound. is a substance formed when two or more pure elements come tougther. element. a pure substance. accuracy. how close the measurement comes to the target. has no neutrons. Why is Hydrogen different from all other elements? aluminum. Which element is along the zig-zag line but is not a metalloid? Study with Quizlet and memorize flashcards containing terms like Atomic Theory, endothermic takes in energy (ice melting) and exothermic gives off heat (match lighting), electron cloud and more. What is the compound name for iron (III) hydride? FeH₃. What does NH₄OH dissociate into? NH₄⁺ and OH⁻. List the seven strong acids. Hydrochloric acid (HCl), Hydrobromic acid (HBr), Hydroiodic acid (HI), Nitric acid (HNO₃), perchloric acid (HClO₄), chloric acid (HClO₃), sulfuric acid (H₂SO₄) List the six strong bases.Increasing temperature causes the kinetic energy to increase. Thus, molecules are moving faster and colliding more frequently. This causes the rate of reaction to incrase.Physical Change. when substances change phases of matter by adding or taking away energy. Solid. phase in which matter has a definite shape and volume. Gas. phase in which matter has no definite shape or volume. Chemical Change. process by which a substance becomes a new and different substance. Mixture.all halogen atoms have ___ valence electrons and need to gain ____ electron/s to achieve the configuration of a noble gas. 7, 1. Define ionic compound. a compound composed of anions and cations. 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Review of chemistry for the hesi A2 nursing school entrance exam. Learn with flashcards, games, and more — for free. Exam 1 1. Elements & Symbols 2. Alternate Names 3. 22 Definitions (matching) 4. Periodic Table * Match Element to Group (9) 5. (4) Important Individuals a…Gas molecules have zero volume. 2. Gas molecules exert no forces other than repulsive forces due to collisions. 3. Gas molecules make completely elastic collisions. 4. The avg. kinetic energy of gas molecules is directly proportional to the temperature of the gas. Partial pressure of a gas (equation) Partial pressure equals the mole fraction of ...Aromatic Hydrocarbon. Contain at least one benzene ring or similar structural features. Benzene. Consists of a ring of six carbon atoms with alternating single and double carbon-carbon bonds. Organic chemistry in terms of chemical substances and chemical formulas. Learn with flashcards, games, and more — for free.. Tripod deer stands at walmart