Question

Oxygen combines with acetylene to form carbon dioxide and water as shown in the equation:
C2H2 + O2 -> CO2 + H2O
(i) What kind of chemical reaction is this?
(ii) Will this reaction be endothermic?
(iii) Why should a chemical reaction always be balanced? Is this reaction balanced?
(iv)How many molecules of carbon dioxide are produced when five moles of oxygen are consumed?
(v) If 26 g of acetylene is burnt in excess of oxygen, how many grams of water will be formed?
(vi) What volume would carbon dioxide occupy at 2 atm. and 227 °C if its volume at S.T.P. is 8.96 L?​

Answer 1

Oxygen combines with acetylene to form carbon dioxide and water as shown in the equation:

C2H2 + O2 -> CO2 + H2O

(i) What kind of chemical reaction is this?

(ii) Will this reaction be endothermic?

(iii) Why should a chemical reaction always be balanced? Is this reaction balanced?

(iv)How many molecules of carbon dioxide are produced when five moles of oxygen are consumed?

(v) If 26 g of acetylene is burnt in excess of oxygen, how many grams of water will be formed?

(vi) What volume would carbon dioxide occupy at 2 atm. and 227 °C if its volume at S.T.P. is 8.96 L?​