Which of the following is not evidence for the law of conservation of mass during cellular respiration? the total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced. c6h12o6 + 6 o2 → 6 co2 + 6 h2o + energy the products from cellular respiration are created from the same elements (carbon, oxygen, and hydrogen) that make up the reactants. cellular respiration creates an energy molecule when glucose is broken down.

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

What volume would 2.25 moles of ne has occupy at stp?

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.