A piece of metal with a mass of 125 g is placed into a

Question

Questions -

Question 1 - Which of the following is an example of a physical property?

Corrosiveness of sulfuric acid

Lead become a liquid when heated to 601 degrees Celsius

Flammability of gasoline

Neutralization of stomach acid with an antacid

Toxicity of cyanide

Question 2 - Which of the following represents a chemical change?

Heating water to form steam

Sliced apples, in contact with air, turning brown

Sugar dissolving in hot coffee

Mixing sugar and cinnamon

Cutting a bar of sodium metal into pieces with a knife

Question 3 - Condensation refers to which conversion?

Solid gas

Solid liquid

Gas liquid

Gas solid

Liquid gas

Question 4 - 2.4 km is how many millimeters?

2,400 mm

2.4 x 10⁴ mm

2.4 x 10⁵ mm

2.4 x 10⁶ mm

2.4 x 10^-5 mm

Question 5 - Which of the following represents the largest mass?

2.0 x 10² mg

0.0010 kg

2.0 x 10² cg

10.0 dg

Question 6 - Many home freezers maintain a temperature of 0 degrees F. Express this in degrees C.

-32 degrees C

-18 degrees C

0 degrees C

18 degrees C

57.6 degrees C

Question 7 - How many significant figures are there in 1.3070 g?

6

5

4

3

2

Question 8 - A barrel of oil contains 42.0 gallons. How many liters is this? Given 1 L = 1.06 qt.

9.9 L

11 L

142 L

158 L

178 L

Question 9 - A piece of metal with a mass of 125 g is placed into a graduated cylinder that contains 25.00 mL of water, raising the water level to 56.00 mL. What is the density of the metal?

5.00 g/cm³

4.03 g/cm³

2.23 g/cm³

1.51 g/cm³

0.25 g/cm³

Question 10 - The density of mercury is 13.6 g/cm³. How may liters does 251 g of Hg occupy?

18.5 L

54.9 L

1.85 x 10^-2 L

5.42 x 10^-2 L

3.41 x 10^-3 L