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Atoms And Bonds Test #2
Test Description: Chemistry
Instructions: Answer all questions to get your test result.
1) Protons have a _____________________ charge.
A
negative
B
neutral
C
positive
D
weak
2) Neutrons have a ______________________ charge.
A
positive
B
negative
C
strong
D
neutral
3) Substances that form as a result of the reaction are called the _____________.
A
products
B
chemical reaction
C
reactants
D
subscripts
4) Balling up paper is an example of a _____________________________.
A
physical change
B
none of the above
C
chemical change
D
chemical reaction
5) A process that produces a chemical change is called a ___________________.
A
Chemical Change
B
Chemical Reaction
C
Physical Change
D
Product
6) A reaction that releases energy is called an __________________________ reaction.
A
physical
B
chemical
C
exothermic
D
endothermic
7) H2O is an example of a ______________________________________.
A
coefficient
B
chemical formula
C
reaction
D
subscript
8) A reaction that absorbs energy is called an _________________________ reaction.
A
endothermic
B
exothermic
C
chemical
D
physical
9) A change that affects only a substance’s size, shape, or whether it is a solid, liquid, or gas is called a _________________________________________.
A
chemical reaction
B
state reaction
C
chemical change
D
physical change
10) Substances that exist before the reaction begins are called the ______________.
A
reactants
B
products
C
chemical change
D
chemical reaction
*select an answer for all questions
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