Given the balanced equation representing a reaction: 2h2 + o2 ==> 2h2o
what is the mass of h2o produced when 10.0 grams of h2 react completely with 80.0 grams of o2?
(1) 70.0 g (2) 90.0 g (3) 180. g (4) 800. g

What is a property of a double replacement reaction

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.