Which of the following are chemical processes?
1. rusting of a nail
2. freezing of water
3. decomposition of water into hydrogen and oxygen gases
4. compression of oxygen gas
Select one:
a. 1, 2
b. 1, 4
c. 1, 3, 4
d. 2, 3, 4
e. 1, 3
~ E
Which one of the following is often easily sep...
Which one of the following is the highest temperature?
Select one:
a. 96°F
b. 38°C
c. 302 K
d. none of the above
e. the freezing point of water
✓✓~ B
Which one of the following is not an intensive property?
Select one:
a. mass
b. density
c. boiling point
d. temperature
e. melting point
✓✓~ A
, You have to calculate the volume of a gas sample with mass of 1.000 × 10^3 g and
density of 1.027 g/L , but you have forgotten the formula. Which way of reasoning
would help you in finding the correct mass?
Select one:
a. If 1.027 L of gas has a mass of 1 g, then _____ L has the mass of 1.000 × 10^3 g.
b. If 1.027 g of a gas takes up a volume of 1 L, then 1.000 × 10^3 g of the same gas
takes up a volume of _____.
✓✓~ B
Which of the following liquids has the greatest density?
Select one:
a. 0.022 cm^3 with a mass of 0.10 g
b. 210 cm^3 with a mass of 12 g
c. 3.5 cm^3 with a mass of 10 g
d. 13 cm^3 with a mass of 23 g
e. 54 cm^3 with a mass of 45 g
✓✓~ A
Which of the following is (are) the lowest temperature?
Select one:
a. The freezing point of water
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