Answer:
28,980 kJ is the heat produced by the consumption of 2.1 kg of reactant.
Explanation:
In a chemical reaction, 13.8 Kj/g of heat for 1 gram of reactant consumed.
Heat released when 1 gram of reactant is used = 13.8 kJ
Heat released when 1 gram of 2.1 kg of reactant is used:
Mass of the reactant 2.1 kg ,m= 2100 g (1 kg = 1000 g)
Heat released when 1 gram of 2100 g of reactant is used:Q


28,980 kJ is the heat produced by the consumption of 2.1 kg of reactant.