WorksheetsUnit 1-2 Review
Total questions: 14
Worksheet time: 7mins
When something is a gas, its molecules...
Are packed together very tightly
Are spread far apart
If something has definite volume but NO definite shape, it is a...
solid
liquid
gas
Mint chocolate chip ice cream is...
an element
a compound
a homogeneous mixture
a heterogeneous mixture
Strawberries are red. "Red" is a...
physical property
chemical property
Which of the following is a chemical change?
sawing wood
melting candle wax
dissolving salt in water
rusting
One substance reacting with another is a...
chemical change
physical change
The substance CH3COOH is...
an element
a compound
a homogeneous mixture
a heterogeneous mixture
Which of the following does not have definite (fixed) volume?
solid
liquid
gas
An object has a mass of 16 g and a volume of 8 mL. What is the density?
(density = mass/volume)
1 g/mL
2 g/mL
24 g/mL
128 g/mL
The law of conservation of mass says that matter cannot be created nor destroyed, only...
transformed
disappeared
vaporized
blipped
A student measured a sample of water and recorded the volume as 12.5 mL. The true volume of the water was 10 mL. What is the percent error?
percent error = truemeasured − true×100
10%
2.5%
25%
1%
Which state of matter is most tightly packed?
solid
liquid
gas
Which state of matter has molecules that are separate and move at high speeds?
solid
liquid
gas
Convert 48 oz to lbs. (1 lbs = 16 oz)
1 lb
0.3333 lbs
3 lbs
786 lbs
