5) When 25 grams of carbon are mixed with water under the right conditions, methane (CHA) and carbon
dioxide are formed. If the percent yield of this reaction is 90.0%, how many grams of CHA will form?

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2

How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon