CHM 101 FINAL VOCAB EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

CHM 101 FINAL VOCAB EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 matter - Answers anything that has mass and takes up space exact numbers - Answers the values obtained by counting items hypothesis - Answers possible answer to a question that can be tested ground state - Answers lowest possible energy level of an electron atom - Answers basic building block of matter; the smallest unit of matter that retains the properties of a given element atomic number - Answers used to identiiy the element, indicates the number of protons in its nucleus element - Answers pure substance made of atoms that have the same number of protons in their nuclei precision - Answers closeness of a group of measurements to each other measurement - Answers comparison of an unknown quantity to a standar octet rule - Answers an atom is stabilized by having its valence energy level filled with electrons accuracy - Answers the closeness of a measurement to the expected value scientific law - Answers observation of nature valence electrons - Answers outer energy electrons that are available for chemical bonding chemical change - Answers change in matter that produces new substance(s); heat, light, color change, precipitate, etc. physical change - Answers change in a substance that does not involve a change in substance identity; state of matter, size, shape, density, etc. chemical property - Answers ability of a substance to undergo a change in composition to form a new substance isotopes - Answers elements of the same kind that have different masses due to different numbers of neutrons molar mass - Answers sum of the average atomic masses of each element in a compound scientific method - Answers logical, organized way of solving a problem lewis structure - Answers structural formula of a compound that shows the element symbols, number, arrangement, bonds, and lone pairs of electrons theory - Answers widely accepted explanation to an observation physical properties - Answers substance that can be observed without changing the identity of a substance atomic mass - Answers weighted average of the masses of all the naturally occurring isotopes of an element energy - Answers ability to cause a change or do work modern atomic theory - Answers describes the electrons most probable location within the electron cloud of an atom using a concept called quantum mechanics electronegativity - Answers measure of how strongly atoms pull on the bonded electrons ions - Answers atoms or molecules with a net electric charge due to the loss or gain of one or more electrons chemical equations - Answers shorthand method of showing the substances and their amounts in a chemical reaction coefficients - Answers numbers written to the left of formulas in chemical equations that indicate the amount of each substance and are used when balancing equations ionic compounds - Answers neutral substances composed of charged positive and engative ions nonpolar covalent bonds - Answers share electrons equally polyatomic ions - Answers groups of covalently bonded elements taht have a charge empirical formula - Answers simplest whole number formula of a compound molecule polarity - Answers polarity of a covalent molecule due to the nature and arrangement of the bonds ionic lattice - Answers the many cations and anions of an ionic compound joined together in a 3D structure or alternating positive and negative charges covalent bonds - Answers formed when two nonmetals share electrons bond polarity - Answers type of covalent bond depends on the different in electronegative between the bonding elements subscripts - Answers numbers written to bottom right of a substance used when writing the formulas of compounds valence shell electron pair repulsion theory (vsepr) - Answers model used to predict the 3D geometry of molecules based on minimizing the electrostatic repulsion o a molecule's valence electrons around a central atom transition metals - Answers metals in groups 3-12 on the periodic table ionic bond - Answers attraction between oppositely charged ions polar covalent bond - Answers share electrons unequally (one has a pull in direction of one element) gases - Answers form of matter containing high energy particles that move freely and tend not to react with the particles around them net ionic equation - Answers equation written to show the precipitate and the ions from which it forms gay-lussac's law - Answers the pressure and the absolute temperature of an ideal gas are directly proportional when the volume remains constant kinetic theory of matter - Answers states all matter is made up o particles that are in constant motion pressure - Answers force per unit are of a substance boyle's law - Answers the relationship between pressure and volume of an ideal gas are inversely proportional when kept at a constant stable temperature dissociation - Answers the chemical separation of a substance into ions when it is dissolved in water kelvin - Answers used to measure absolute temperature stoichiometry - Answers mathematical application use din chemistry to determine the amounts of reactants needed for a chemical reaction to produce the optimal amount of product precipitation reaction - Answers type of double replacement reaction in which two soluble ionic substances react to produce a solid product concentration - Answers determined by amount of solute in a solution solubility - Answers ability of a solute to form a solution wiht a solvent moles - Answers a counting number used in chemistry that serves as the link between the number of atoms in a substance to its equivalence in grams precipitate - Answers solid product that forms when two aqueous solutions react chemically in a double replacement reaction charles's law - Answers the relationship between volume and absolute temperature of an ideal gas are directly proportional when the pressure is constant avogardo's number - Answers number of atoms per mole in any substance (6.022 x10^23) solution - Answers homogenous mixture of two or more substances solvent - Answers the substance the solute is dissolved into solute - Answers substance being dissolved; usually the smaller amount neutralization reaction - Answers type of double replacement reaction that occurs when an acid and base combine, results in a salt and water organic compounds - Answers large class of chemical compounds containing carbon elements that are covalently bonded to other elements (usually H, O, and N) isomers - Answers compounds with the same chemical formulas but different structural formulas hydrocarbons - Answers compounds made up of only carbon and hydrogen atoms arrhenius acid - Answers produces hydrogen ions by dissociation when dissolved in water