CHEM 120 Exam Solutions 2024.

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CHEM 120 Exam Solutions 2024.

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CHEM 120 Exam Solutions 2024

define matter - ANS-anything that has mass and takes up space

what is not considered matter? - ANS-light, heat, electricity

definite shape, definite volume - ANS-solid

indefinite shape, definite volume - ANS-liquid

indefinite shape, indefinite volume - ANS-gas

pure substance - ANS-one substance; definite and constant composition; can't be
separated into 2 kinds of matter by physical means; single kind of matter

heterogeneous mixture - ANS-nonuniform in appearance; visibly different phases

homogeneous mixture - ANS-visibly one distinct phase; uniform properties

examples of pure substances - ANS-water, sugar, table salt

examples of heterogeneous mixtures - ANS-trail mix, chocolate chip cookies, cereal and
mix

examples of homogeneous mixtures - ANS-chocolate milk, orange juice, salt water

element v compound - ANS-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 - ANS-physical combinations of substances -v- chemical
combination of substances

most abundant elements in the universe as a whole plus in earth's crust -
ANS-hydrogen and oxygen

, two most abundant elements in the earth's crust - ANS-oxygen and silicon
Ag - ANS-silver Al -

ANS-aluminum Ar -

ANS-argon Au -

ANS-gold

B - ANS-boron Ba -

ANS-barium Be -

ANS-beryllium Br -

ANS-bromine C -

ANS-carbon Ca -

ANS-calcium Cl -

ANS-chlorine Cu -

ANS-copper F -

ANS-fluorine Fe -

ANS-iron

H - ANS-hydrogen

He - ANS-helium

Hg - ANS-mercury

I - ANS-iodine

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Study: WGU DAC1 Information Systems Management Pre-Assess
Uploaded on: May 30, 2024
Number of pages: 8
Written in: 2023/2024
Type: Exam (elaborations)
Contains: Questions & answers

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