2. A diagram in a chemistry book shows a magnified view of a flask of air. What do you suppose is between the dots (which represent air molecules)?
A. Air b. Dust C. Pollutants D. Oxygen E. Nothing

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c