Pure Substance vs. Mixture
Conversions
Density
Physical vs. Chemical
Misc.
100
Carbon Dioxide is an example of what?
Pure Substance
100
Convert 3.2g of magnesium to mg.
3200 mg
100
What is the equation in solving for density?
D = m/v
100
True or False? A physical change occurs when the substance changes its composition.
False.
100
What element is P?
Phosphorus
200
What kind of mixture is a chocolate chip cookie?
Heterogeneous mixture
200
What two units are a one to one ratio?
cubic centimeter and milliliter
200
True or false? The units for density is a derived unit.
True
200
Is water boiling a physical or chemical change?
physical
200
No definite shape or volume.
Gas
300
Oxygen is an example of what kind of pure substance?
Element
300
Convert 76 cm to m.
0.76 m
300
Find the mass of a substance when the density is 8 g/mL and the volume is 7 mL.
56 g
300
Rust is an example of what kind of change?
chemical
300
A different molecular form of an element is known as a what?
Allotrope
400
True or false? Mixtures are chemically combined.
False
400
What is the first step in converting? According to Mr. Hoyt.
Write down the given!
400
In the lab, how did you determine the volume of the pennies?
Water displacement
400
When you burn a piece of paper, is that a physical change?
No, it is a chemical change.
400
What state is it in when particles are closely packed together?
Solid
500
In your lab, you mixed sulfur, water, and salt. You then filtered it through a funnel. The resulting liquid in the beaker was what kind of mixture?
Homogeneous mixture
500
1 liter is how many cubic centimeters?
1000
500
What is the density of a substance when mass is 24g and volume is 6mL?
4 g/mL
500
You are enjoying a nice fall afternoon in the park and you watch the leaves change color. What kind of change do you see?
Chemical
500
A solid mixture.
Alloy
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