state two endothermic and exothermic reactions
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Exothermic
2Na+Cl² - 2NaCl
HCl+NaOH-NaCl+H²O
Endothermic
CaCO3 (+ heat energy) ==> CaO + CO2
C8H18 ==> C6H14 + C2H4
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2Na+Cl² - 2NaCl
HCl+NaOH-NaCl+H²O
Endothermic
CaCO3 (+ heat energy) ==> CaO + CO2
C8H18 ==> C6H14 + C2H4
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Answered by
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A change that occurs with the absorption of heat is called an endothermic change.
Examples:
Melting of ice
Evaporation of spirit.
On the other hand , a change that occurs with the production of heat is called an exothermic change.
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Examples:
Burning of matchstick
Glowing of an electric bulb.
Reactions:
Endo.
2Na + Cl 2 - 2NaCl
HCl + NaOH - NaCl. +H2O
Exo.
Ca CO3 = CaO +CO2
C8H18= C6H14+C2H4
Examples:
Melting of ice
Evaporation of spirit.
On the other hand , a change that occurs with the production of heat is called an exothermic change.
Hope it helps.....
Please mark it brainliest..
Examples:
Burning of matchstick
Glowing of an electric bulb.
Reactions:
Endo.
2Na + Cl 2 - 2NaCl
HCl + NaOH - NaCl. +H2O
Exo.
Ca CO3 = CaO +CO2
C8H18= C6H14+C2H4
mahika39:
please mark it brainliest
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