Identify the endothermic and exothermic reaction.
a. HCl + NaOH NaCl + H2
O + heat
b. 2KClO3
(s) 2KCl(s) + 3O2
c. CaO + H2
O Ca(OH)2
+ heat
d. CaCO3
(s) CaO(s) + CO2
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Answer:
2 or 3 X H2O because it is transferred in isolated from liquid is called conduction
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