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Physics, 29.06.2019 09:30, nicolemaefahey
1. flammability is a material's ability to burn in the presence a. hydrogen. b. nitrogen. c. oxygen. *** d. carbon dioxide. 2. which of the following is not a clue that a chemical change has occurred? a. change in color b. production of gas c. formation of a precipitate d. change in shape *** 3.which of the following is a chemical change? a. ice melting b. ice being carved c. water boiling d. water breaking down into hydrogen and oxygen*** 4. which of the following not a pure substance a. milk*** b. oxygen c. water d. carbon dioxide 5. matter that has a definite volume but no definite shape is a. liquid*** b. solid c. gas d. plasma 6. forces of attraction limit the motion of particles most a. a solid*** b. a liquid c. a gas d. both b and c (fill in the blanks) 7.a(n) physical change occurs when a material changes shape or size but the composition of the material does not change. 8. chemical property properties can be observed only when the substances in a sample of matter are changing into different substances. 9. materials can be classified as solids, liquids, or gases based whether their shapes and volume are definite or variable. 10. the kinetic energy theory of matter states that all particles of matter are in constant motion.
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1. flammability is a material's ability to burn in the presence a. hydrogen. b. nitrogen. c. oxygen...
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