Propane (C3H8) burns in excess oxygen (O2) according to the following reaction: C3H8 + 5O2 → 3CO2 + 4H2O How many moles of water (H2O) are formed from 1 mol of C3H8 being burned?

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?