25 m/s to miles/hr can anyone solve it? it’s for chemistry

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland