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CHEM 120 Exam -1 with correct answers

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CHEM 120 Exam -1 with correct answers

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CHEM 120 Exam #1 with correct /\ /\ /\ /\ /\ /\




answers

define matter - CORRECT ANSWERS ✔✔anything that has mass
/\ /\ /\ /\ /\ /\ /\ /\ /\



and takes up space
/\ /\ /\




what is not considered matter? - CORRECT ANSWERS ✔✔light,
/\ /\ /\ /\ /\ /\ /\ /\ /\



heat, electricity
/\




definite shape, definite volume - CORRECT ANSWERS ✔✔solid
/\ /\ /\ /\ /\ /\ /\




indefinite shape, definite volume - CORRECT ANSWERS ✔✔liquid
/\ /\ /\ /\ /\ /\ /\




indefinite shape, indefinite volume - CORRECT ANSWERS ✔✔gas
/\ /\ /\ /\ /\ /\ /\




pure substance - CORRECT ANSWERS ✔✔one substance; definite
/\ /\ /\ /\ /\ /\ /\ /\



and constant composition; can't be separated into 2 kinds of
/\ /\ /\ /\ /\ /\ /\ /\ /\ /\



matter by physical means; single kind of matter
/\ /\ /\ /\ /\ /\ /\




heterogeneous mixture - CORRECT ANSWERS ✔✔nonuniform in /\ /\ /\ /\ /\ /\ /\



appearance; visibly different phases /\ /\ /\




homogeneous mixture - CORRECT ANSWERS ✔✔visibly one /\ /\ /\ /\ /\ /\ /\



distinct phase; uniform properties
/\ /\ /\

, examples of pure substances - CORRECT ANSWERS ✔✔water, /\ /\ /\ /\ /\ /\ /\ /\



sugar, table salt /\ /\




examples of heterogeneous mixtures - CORRECT ANSWERS /\ /\ /\ /\ /\ /\ /\



✔✔trail mix, chocolate chip cookies, cereal and mix
/\ /\ /\ /\ /\ /\ /\




examples of homogeneous mixtures - CORRECT ANSWERS /\ /\ /\ /\ /\ /\ /\



✔✔chocolate milk, orange juice, salt water /\ /\ /\ /\ /\




element v compound - CORRECT ANSWERS ✔✔can't be broken
/\ /\ /\ /\ /\ /\ /\ /\ /\



down into simpler substances by chemical or physical means -v-
/\ /\ /\ /\ /\ /\ /\ /\ /\ /\



can be broken down into elements by chemical, but not physical
/\ /\ /\ /\ /\ /\ /\ /\ /\ /\ /\



means


mixture v compound - CORRECT ANSWERS ✔✔physical /\ /\ /\ /\ /\ /\ /\



combinations of substances -v- chemical combination of /\ /\ /\ /\ /\ /\ /\



substances


most abundant elements in the universe as a whole plus in earth's
/\ /\ /\ /\ /\ /\ /\ /\ /\ /\ /\ /\



crust - CORRECT ANSWERS ✔✔hydrogen and oxygen
/\ /\ /\ /\ /\ /\




two most abundant elements in the earth's crust - CORRECT
/\ /\ /\ /\ /\ /\ /\ /\ /\ /\



ANSWERS ✔✔oxygen and silicon /\ /\ /\




Ag - CORRECT ANSWERS ✔✔silver
/\ /\ /\ /\




Al - CORRECT ANSWERS ✔✔aluminum
/\ /\ /\ /\

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