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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
positive
C
neutral
D
weak
2) Neutrons have a ______________________ charge.
A
negative
B
positive
C
neutral
D
strong
3) Substances that form as a result of the reaction are called the _____________.
A
reactants
B
subscripts
C
products
D
chemical reaction
4) Balling up paper is an example of a _____________________________.
A
none of the above
B
chemical change
C
chemical reaction
D
physical change
5) A process that produces a chemical change is called a ___________________.
A
Physical Change
B
Chemical Reaction
C
Product
D
Chemical Change
6) A reaction that releases energy is called an __________________________ reaction.
A
endothermic
B
chemical
C
exothermic
D
physical
7) H2O is an example of a ______________________________________.
A
chemical formula
B
subscript
C
reaction
D
coefficient
8) A reaction that absorbs energy is called an _________________________ reaction.
A
chemical
B
endothermic
C
exothermic
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 change
B
physical change
C
chemical reaction
D
state reaction
10) Substances that exist before the reaction begins are called the ______________.
A
chemical reaction
B
products
C
chemical change
D
reactants
*select an answer for all questions
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