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WorksheetsIPC: Unit 2 Review
Total questions: 26
Worksheet time: 43mins
When two or more kinds of matter combine and retain their own characteristic properties, that sample is called ____.
an ore
a compound
a pure substance
a mixture
A substance with fixed proportions of 11.2% hydrogen and 88.8% oxygen (H2O) by mass must be a ____.
a mixture
a solution
heterogeneous
a compound
A pure substance is a(n) ____.
mixture or element
solution
element or chemical compound
element or solution
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Coca-Cola
element
compound
homogeneous mixture
heterogeneous mixture
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Fruit salad
element
compound
homogeneous mixture
heterogeneous mixture
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Air
element
compound
homogeneous mixture
heterogeneous mixture
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Water (H20)
element
compound
homogeneous mixture
heterogeneous mixture
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Nitrogen gas (N2)
element
compound
homogeneous mixture
heterogeneous mixture
Identify the following as EITHER an element, compound, homogeneous mixture, or heterogeneous mixture.
Iron (Fe)
element
compound
homogeneous mixture
heterogeneous mixture
Which separation technique pours off the top layer?
boiling
decanting
distillation
magnets
Which separation technique would best separate a sugar water solution?
centrifuging
filtration
boiling
decanting
A chemical property of oxygen is that it ___
is the most abundant element in Earth's crust
boils at -183°C
reacts with hydrogen to form water
has a density of 1.43 g/L
Which of the following is NOT a sign of a chemical change?
unexpected color change
precipitate formation
gas formation
phase change
Identify the following as either a physical (P) or chemical (C) change.
Allowing silver to tarnish
C
P
Both P and C
Neither P nor C
Identify the following as either a physical (P) or chemical (C) change.
A loaf of bread is sliced in two.
P
C
Both P and C
Neither P nor C
Identify the following as either a physical (P) or chemical (C) change.
Magnesium chloride dissolves in water.
P
C
Both P and C
Neither P nor C
Identify the following as either a physical (P) or chemical (C) change.
Two white substances are mixed and it turns black.
C
P
Neither
Both
Identify the following as either a physical (P) or chemical (C) change.
Burning wood
C
P
Both P and C
Neither P nor C
Identify the following as either a physical (P) or chemical (C) change.
Copper melts at 1085 °C
P
C
D
E
Identify the following as either a physical (P) or chemical (C) change.
An iron fence rusts.
C
P
Both P and C
Neither P nor C
Identify the following as either Intensive (I) or Extensive Property (E)
Volume
E
I
Density
Temperature
Identify the following as either Intensive (I) or Extensive Property (E)
Density
I
E
Mass
Volume
Identify the following as either Intensive (I) or Extensive Property (E)
Mass
E
I
Neither
Both
Identify the following as either Intensive (I) or Extensive Property (E)
Melting Point
I
E
Neither
Both
When I sat down in the Dead Sea I floated easily. What does that same about the density of the Dead Sea?
the Dead Sea is less dense than me
the Dead Sea is more dense than me
a miracle of science
The density of copper is 11.0g/mL. What mass of copper (in grams) has a volume of 3.0 mL?
33.0 grams
30.0 grams
3.0 grams
11.0 grams
