CHEMICAL REACTION TYPE OF CHEMICAL REACTION
NaBr + Ca(OH), → Cabr, + NaOH
NH,+H, SO, → (NH),SO
C, H,O + O CO + H2O
Pb + H, PO, -H, + Pb,(PO)
CaCO-CaO + CO,
HNO, +
KOH → KNO, + H2O

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

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