1) What is the definition of the word "Mixture?" a) i don't know b) matter made up of two or more substances that are not joined chemically c) The temperature at which a solid changes to a liquid.  d) change in state from a liquid to a gas 2) What is the definition of the word "Pure Substance" a) The smallest unit of matter that retains the identity of a substance. b) Subatomic particle with a positive charge and located in the nucleus of an atom. The number of protons gives the atom its identity. c) the process of a solid changing to a gas d) matter that has the same chemical composition throughout and cannot be separated into its parts by physical means; examples: elements and compounds 3) Horizontal row on the Periodic Table a) period b) Volume c) Proton d) Liquid 4) What is a Element? a) the outside of an atom b) a form of liquid c) simple substances that cannot be broken down into simpler substances d) a form of gas 5) What is an Compound in science? a) fire water wind and earth b) a pure substance that forms when two or more elements join chemically in a fixed proportion c) each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but same chemical properties d) electrons located on the last shell or energy level of an atom e) Chemical Change 6) What is mass in science? a) Measure of the amount of matter in a substance b) 4 times 32 in a cube c) a freezing point d) i don't know sorry 7) What is the definition of the word "malleability?"  a) radiation b) a really big number c) the average mass of all isotopes of an atom. It is equal to the number of protons plus neutrons in the nucleus of an atom d) the ability of a substance to be hammered or beaten into thin sheets 8) What is the definition of the word "solubility?" a) the ability to dissolve in another substance b) Father of the Modern Periodic Table. c) Change in state from a liquid to a gas. d) electricity in my house 9) What is a Physical Change? a) electrons located on the last shell or energy level of an atom b) change in state from a liquid to a gas c) a change in a substance that does not involve a change in the identity of the substance d) he temperature at which a solid changes to a liquid. 10) What does the word "ductility" mean?  a) each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but same chemical properties b) electrons located on the last shell or energy level of an atom c) change in state from a gas to a liquid d) Capacity of a material to deform permanently (e.g., stretch, bend, or spread) in response to stress 11) the amount of matter in a given space; mass per unit volume a) density b) matter c) change d) liquid 12) Homogenous Mixture a) a mixture in which substances are evenly distributed; example: a solution, milk, sugar water b) i dont know c) a mixture d) heterogenous 13) conductivity a) the ability of a material to allow either heat or electricity to flow through it b) vertical column on the Periodic Table; elements in the column share similar properties; also knows as a Group c) Conductivity d) Attraction between opposite poles 14) precipitate a) rain b) A solid that is produced as a result of a chemical reaction in solution c) Measure of the amount of matter in a substance d) The law that states that mass is neither created nor destroyed in ordinary chemical and physical changes. 15) Valence Electron a) im not sure b) neutrons relates c) another word for atomic number d) the electrons in the outermost shell, or energy level, of an atom. e) Ķ 16) Noble Gases a) The full valence electron shells of these atoms b) regular gasees c) idk 17) Heterogenous Mixture a) a mixture in which substances are evenly distributed; example: a solution, milk, sugar water b) idk c) a mixture in which substances are not distributed evenly; example: a salad, pepperoni pizza, dirt 18) Chemical Property a) a pure substance that forms when two or more elements join chemically in a fixed proportion b) a characteristic of a substance that cannot be observed without changing the identity of the substance c) a characteristic of a substance that can be observed directly (what you see, what you feel, what you smell) or can be measured with a tool without changing the identity of the substance d) idk 19) Physical Property a) a characteristic of a substance that cannot be observed without changing the identity of the substance b) a characteristic of a substance that can be observed directly (what you see, what you feel, what you smell) or can be measured with a tool without changing the identity of the substance c) idk 20) Oxidation (Rusting) a) Rust is the result of corrosion caused by oxidation in metal. b) chemical rusting c) idk

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