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WorksheetsQuiz 2 Review
Total questions: 10
Worksheet time: 10mins
How much KCl dissolves in 100g H2O at 40 degrees C?
39g
25g
17g
12g
We know that Ce2(SO4)3 is a gas because it is the only line that....
Increases solubility as temp. decreases
Decreases solubility as temp .decreases
Increases solubility as temp. increases.
Decreases solubility as temp. increases.
At 25 degrees Celcius, would adding 75g of CaCl2 to 100g of H20 make a saturated, unsaturated, or supersaturated solution?
unsaturated
supersaturated
saturated
Which of the following would NOT increase solubility?
Decreasing temperature
Increasing surface area
Increasing temperature
Increasing agitation
What is the solvent in the Brass alloy?
Copper because it is the larger percentage
Copper because it is the smaller percentage
Iron because it is the smaller percentage
Iron because it is the larger percentage
A rock has a mass of 210 grams and occupies a volume of 70 cm3. What is its density? D= m/v
3 g/cm^3
6 g/cm^3
1 g/cm^3
2 g/cm^3
A rock has a density of 4 g/ml and a mass of 16 grams. What is the volume this rock occupies?
4 mL
6 mL
12 mL
0.25 mL
An unknown substance from planet X has a density of 2 g/ml. It occupies a volume of 10 ml. What is the mass of this unknown substance?
20 g
4 g
5 g
8 g
If A-B is a solid, C-D is a liquid, and E-F is a gas. What 2 points show the range for the Melting Point of this substance? Is this a Physical or Chemical Change?
D-E, Physical
B-C, Chemical
D-E, Chemical
B-C, Physical
During a lab a student mixes together lemon juice and baking soda. The reaction forms bubbles and cannot be simply reversed. Is this a physical or chemical change?
Chemical
Physical
