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