1. which of these is a chemical property of a substance?
a. reactivity
b. c...
Physics, 30.09.2019 05:50 samanthaepperson
1. which of these is a chemical property of a substance?
a. reactivity
b. color
c. boiling point
d. melting point
question 2
which of these is true of a chemical reaction?
a. energy is always released.
b. energy is always absorbed.
c. energy is either released or absorbed.
d. energy is not transferred.
question 3
which of these is an example of a chemical change?
a. leaving cheese out to get moldy
b. smelling sprayed perfume
question 3
which of these is an example of a chemical change?
a. leaving cheese out to get moldy
b. smelling sprayed perfume
c. feeling ice melt on your skin
d. crushing ice with a hammer
question 4
which of these is an example of a physical change?
a. melting a substance
b. breaking chemical bonds
c. forming chemical bonds
d. nuclear decay
question 5
which of these is an example of a physical change?
a. gasoline burning
b. metal denting
c. iron rusting
d. silver tarnishing
Answers: 2
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