Be + 2HCI BeCl2 + H2 The theoretical yield of beryllium chloride, BeCl2, was 10.7 grams. If my actual yield was 4.5 grams, what is the percent yield?

[a] 10.7%
[b] 30.2%
[c] 42.0%
(d) 29.6%

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.