1. Which of the following is the smallest mass?

2. Evaluate 4.0x10⁸/2.0x10^-2.

3. Which of the following operations will give an answer containing three significant figures?

1. 1.06gx1.4cm³/0.11g =

2. 6.022x10²³x1.19 mol =

3. 5.2x6.3x2.9/1.43 =

4. 2.54 - 1.95 =

4. What is the volume of a box with dimensions of 15.6 cm x 0.312 m x 59.1 mm?

5. The density of ethanol is 0.789 g/cm³. What is its density in lb/in³?

6. A metal has a density three times that of water. When a piece of this metal is submerged in a graduated cylinder containing 22 mL water the water level rises to 71 mL. What is the mass of this metal? (Remember the rules for significant figures.)

7. The melting point of gallium is 29.8°C; its boiling point is 2403°C. At what temperature on the Fahrenheit scale does gallium melt?

8. At what Kelvin temperature does gallium become a gas?

9. On a hot day (31 °C), a sample of gallium would be:

10. To raise the temperature of 216 g indium from 12°C to 55°C, 2.16 kJ are required. What is the specific heat of indium?