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19-09-2018
Chemistry

contestada

A chemical reaction gives off 2100 kg of heat energy how many calories

Respuesta :

kenmyna kenmyna

28-09-2018

The chemical reaction that gives off 2100 Kg of heat energy has 501.9126 calories

calculation

convert KJ to calories

that is

1 KJ = 0.239006 calories

2100KJ= ? calories

by close multiplication

= (2100 kj x 0.239006)÷ 1 kj =501.9126 calories

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