ACS GEN CHEM 1 FINAL EXAM QUESTIONS AND ANSWERS | 100% PASS

ACS GEN CHEM 1 FINAL EXAM QUESTIONS AND ANSWERS | 100% PASS the physical material of the universe. It is anything that has mass and occupies space. - ️️ Correct-Matter is made up of relatively few elements. - ️️ Correct-Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - ️️ Correct-Atom Each _______ is made of the same kind of atom - ️️ Correct-Element Combination of atoms held together in specific shapes - ️️ Correct-Molecule No fixed volume or shape, conforms to volume and shape of container, is compressible - ️️ Correct-Gas Individual particles are confined to a given volume, liquid flows (no definite shape) and assumes the shape of its container up to the volume of the liquid, slightly compressible - ️️ Correct-Liquid Rigid with definite shape, very slightly compressible - ️️ Correct-Solid these stable diatomics - ️️ Correct-H2,O2, N2, and the Halogens (F2, Cl2, Br2, I2) TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 2/15 Different samples of any pure compound contain the same elements in the same proportion by mass - ️️ Correct-Law of Constant (Definite) Composition characteristics of a substance. Can be observed without changing a substance into another substance - ️️ Correct-Physical Properties Describes the reactivity of a substance. Can only be observed when a substance is changed into another substance - ️️ Correct-Chemical properties: Does not depend on amount. - ️️ Correct-Intensive property : Depends on amount. - ️️ Correct-Extensive property Substances transform into chemically different substances - ️️ Correct-Chemical change No change in chemical composition - ️️ Correct-Physical change How close to the true value a given measurement is. - ️️ Correct-Accuracy How well a number of independent measurements agree with one another. - ️️ Correct-Precision Electrons were discovered by ______ in 1897, while Millikan's Oil Drop experiment determined its charge. • Neutrons were discovered by James Chadwick in 1932. - ️️ Correct-J.J. Thompson TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 3/15 Postulated a very small, dense nucleus with the electrons around the outside of the atom. Most of the volume of the atom is empty space. - ️️ Correct-Rutherford Protons were discovered by______in 1919. - ️️ Correct-Rutherford Neutrons were discovered by________ in 1932. - ️️ Correct-James Chadwick 1) All matter is made of atoms. Atoms are indivisible and indestructible. 2) All atoms of a given element are identical in mass and properties 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms. - ️️ Correct-Dalton's Atomic Theory Organic alkANEs - ️️ Correct-Mother Eats Peanut Butter: Methane: CH4 Ethane: C2H6 Propane: C3H8 Butane: C4H10 ...then greek prefixes Uniform throughout, air, milk, sea water - ️️ Correct-Homogeneous mixture Not uniform, chocolate chip cookie - ️️ Correct-Heterogenous mixture TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 4/15 When an element has a change in mass number, or neutrons - ️️ Correct-isotope A species of an element in which the number of electrons does not equal the number of protons. - ️️ Correct-Ion Each isotope of an atom has a different number of neutrons. - ️️ Correct-Isotope mols/L; mmols/mL - ️️ Correct-Molarity The lighter a gas's atomic weight, the faster it will escape a container. - ️️ Correct- Graham's Law of Effusion The temperature at which the solid and liquid phases of a