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Decide whether each of these reactions is exothermic or endothermic:
When two chemicals mix their temperature rises:
Decide whether each of these reactions is exothermic or endothermic:
A solid burns brightly and releases heat, light, and sound:
Decide whether each of these reactions is exothermic or endothermic:
When two chemicals are mixed their temperature drops:
Decide whether each of these reactions is exothermic or endothermic:
Plants take in light energy for photosynthesis:
A chemical reaction has an enthalpy of – 535 kJ /mole
The reaction is: