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Chemical Changes, Naming, Formula, & Equations And Acid & Bases Quiz Review #2
Test Description: Chemical Changes, Naming, Formula, & Equations and Acid & Bases Quiz Review #2
Instructions: Answer all questions to get your test result.
1) When a base is added to red litmus paper, the indicator turns
A
orange.
B
red.
C
purple.
D
blue.
2) When acids and bases come in contact with each other, they
A
explode.
B
become bitter.
C
make hydroxide.
D
neutralize each other.
3) A neutral solution has a pH of
A
11.
B
3.
C
1.
D
7.
4) Why should you NEVER taste or touch an unknown acid?
A
It could be slippery.
B
It could bite you.
C
It could be corrosive.
D
It could smell bad.
5) A precipitate is a ______ that forms from solutions during a chemical reaction.
A
plasma.
B
liquid.
C
gas.
D
solid.
6) In a(n) ________ change, elements and/or compounds rearrange to form new substance.
A
exothermic.
B
endothermic.
C
physical.
D
chemical.
7) The law of __________ states that during a chemical reaction, matter is not created or destroyed.
A
Conservation of Atoms.
B
Conservation of Mass.
C
Conservation of Energy.
D
Chemistry.
8) A chemical reaction that releases energy in the form of heat is a(n) ________ reaction.
A
chemical
B
exothermic
C
physical
D
endothermic
9) The process of solid ice changing into liquid water is a(n) _____________ change.
A
endothermic
B
chemical
C
exothermic
D
physical
10) What is the chemical formula for iron oxide.
A
IO2
B
FeO
C
FeO2
D
IO
*select an answer for all questions
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