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Chemical Changes, Naming, Formulas, & Equations And Acids & Bases Quiz Review
Test Description: Chemical Changes, Naming, Formulas, & Equations and Acids & Bases Quiz Review
Instructions: Answer all questions to get your test result.
1) The only sure evidence for a chemical reaction is
A
changes in properties.
B
the formation of a gas.
C
a color change.
D
the production of one or more new substances.
2) CaCO3 represents a chemical
A
reaction.
B
subscript.
C
symbol.
D
formula.
3) What happens when chemical bonds break and new bonds form?
A
matter is destroyed.
B
surface area is increased.
C
a physical change.
D
a chemical change.
4) A shorter, easier way to show a chemical reaction, using smbols instead of words, is called a
A
symbol.
B
chemical equation.
C
chemical formula.
D
subscript.
5) The substances listed on the left side of a chemical equation are the
A
coefficients.
B
products.
C
reactants.
D
precipitates.
6) A chemical reaction that absorbs energy in the form of heat is described as
A
combustion.
B
endothermic.
C
exothermic.
D
unbalanced.
7) The minimum amount of energy needed to start a reaction is the
A
endothermic energy.
B
exothermic energy.
C
chemical energy.
D
activation energy.
8) Every chemical reaction involves a change in
A
energy.
B
mass.
C
state.
D
concentration.
9) Acids have a
A
soapy feel.
B
slippery feel.
C
sour taste.
D
bitter taste.
10) Bases have a
A
sour taste.
B
mild taste.
C
slippery feel.
D
sweet taste.
*select an answer for all questions
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