WorksheetsTCAP Review: Common Outcome of Chemical Reactions (9.2)
Total questions: 10
Worksheet time: 28mins
Name
Class
Date
1.
Which of the following always results from a chemical reaction?
a)
Fire
b)
Bubbles
c)
A new substance that is a solid
d)
A new substance that can be a solid, liquid, or gas
2.
The flame from the candle gives off black smoke. Does this statement describe evidence for a physical change or a chemical change? Explain.
a)
A chemical change. The black smoke is evidence that a new substance is not forming which means a chemical change occurred.
b)
A physical change. The black smoke is evidence of the formation of a new substance, which means a chemical change occurred.
c)
A chemical change. The black smoke is evidence of the formation of a new substance, which means a chemical change occurred.
d)
A physical change. The black smoke is evidence of a solid turning into a gas
3.
Which of the following is an example of a chemical reaction?
a)
Water evaporating from a pot on a hot stove
b)
Sand being removed from sea water by filtration
c)
A spoonful of sugar dissolving in a glass of water
d)
A white solid forming when two clear liquids are poured together
4.
How do chemical reactions turn substances into new substances?
a)
with burning acid
b)
the molecules mix together and create new substances
c)
the atoms break apart and combine back together in new ways
d)
the ionic compounds mix in water to form solutions
5.
Which of the following equations demonstrates an actual chemical reaction that forms a new substance?
a)
A
b)
B
c)
C
d)
D
6.
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
a)
The shape of the coal changes
b)
Oxygen is present
c)
A new substance is produced
d)
Coal is made up of more than one element
7.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
8.
The force that holds 2 atoms together is called a ________________.
a)
Chemical Reaction
b)
Chemical Bond
c)
Diatomic Chemical
d)
Glue
9.
Which of the following is NOT an example of a chemical reaction?
a)
Wood Burning
b)
A cake baking in an oven
c)
Melting Ice Cream
d)
Mixing Vinegar and Baking Soda
10.
Which of the following is the definition of a chemical reaction?
a)
a solid forms in a liquid
b)
the color of a liquid changes
c)
a new substance with new properties is formed
d)
a substance becomes noticeably warmer
100 %
