Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous water. the equation for the reaction is2h2o(g) --> 2h2(g)+o2(g)calculate how many grams of o2(g) can be produced from 42.6 grams of h2o(g).

Explanation:

1) Balanced chemical equation (given):

2) Mole ratios:

3) Calculate the number of moles of reactant (H₂0):

4) Set a proportion using the mole ratio  O₂ to H₂O and the actual number of moles of H₂O:

5) Convert 2.36 moles O₂ to grams:

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plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.