Enthalpy Stoichiometry

Froggy Jumps

(2)

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Answer the following Questions. You do not have to submit work

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Felicia Jackson

United States

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Enthalpy Stoichiometry


Froggy Jumps Enthalpy StoichiometryVersion en ligne Answer the following Questions. You do not have to submit work par Felicia Jackson 1 C + O₂ → CO₂ ΔH = –393.5 kJ How much heat is released when 24.0 g of carbon reacts with excess oxygen? a 393.5 kJ b -787 kJ c 1574 kJ 2 2H₂ + O₂ → 2H₂O ΔH = –571.6 kJ How much heat is released when 5.0 moles of H₂ react completely? a 1450 b - 1450 c -1429 3 N₂ + 3H₂ → 2NH₃ ΔH = –92.2 kJ How much heat is released when 10.0 g of N₂ reacts with excess hydrogen? a 32.9 b 15.66 c -32.9 4 4. CH₄ + 2O₂ → CO₂ + 2H₂O ΔH = –890.3 kJ How much heat is released when 2.5 moles of CH₄ are burned? a -2226 b 2000 c -2000 5 2Mg + O₂ → 2MgO ΔH = –1203.6 kJ How much heat is released when 12.0 g of Mg reacts completely? a -297 b -250 c -237 6 2KClO₃ → 2KCl + 3O₂ ΔH = +89.6 kJ How much heat is absorbed when 15.0 g of KClO₃ decomposes? a 549 b -54.9 c 54.9 7 H₂ + Cl₂ → 2HCl ΔH = –184.6 kJ If 92.3 kJ of heat is released, how many moles of HCl are produced? a 5 b 2 c 184 8 CaCO₃ → CaO + CO₂ ΔH = +178.3 kJ How much heat is required to decompose 50.0 g of CaCO₃? a 102 b 98.1 c 89.1 9 CH₄ + 2O₂ → CO₂ + 2H₂O + 890 kJ a Exothermic b Endothermic c 10 2KClO₃ + 89.6 kJ → 2KCl + 3O₂ a Exothermic b Endothermic c 11 C + O₂ → CO₂ ΔH = –393.5 kJ a Exothermic b Endothermic c 12 CaCO₃ → CaO + CO₂ ΔH = +178.3 kJ a Exothermic b Endothermic c 13 2H₂ + O₂ → 2H₂O + 571.6 kJ a Exothermic b Endothermic c 14 N₂ + O₂ + 180.5 kJ → 2NO a Heat is Absorbed b Heat is releases c

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Enthalpy Stoichiometry

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Enthalpy StoichiometryVersion en ligne

par Felicia Jackson

C + O₂ → CO₂ ΔH = –393.5 kJ How much heat is released when 24.0 g of carbon reacts with excess oxygen?

2H₂ + O₂ → 2H₂O ΔH = –571.6 kJ How much heat is released when 5.0 moles of H₂ react completely?

N₂ + 3H₂ → 2NH₃ ΔH = –92.2 kJ How much heat is released when 10.0 g of N₂ reacts with excess hydrogen?

4. CH₄ + 2O₂ → CO₂ + 2H₂O ΔH = –890.3 kJ How much heat is released when 2.5 moles of CH₄ are burned?

2Mg + O₂ → 2MgO ΔH = –1203.6 kJ How much heat is released when 12.0 g of Mg reacts completely?

2KClO₃ → 2KCl + 3O₂ ΔH = +89.6 kJ How much heat is absorbed when 15.0 g of KClO₃ decomposes?

H₂ + Cl₂ → 2HCl ΔH = –184.6 kJ If 92.3 kJ of heat is released, how many moles of HCl are produced?

CaCO₃ → CaO + CO₂ ΔH = +178.3 kJ How much heat is required to decompose 50.0 g of CaCO₃?

CH₄ + 2O₂ → CO₂ + 2H₂O + 890 kJ

2KClO₃ + 89.6 kJ → 2KCl + 3O₂

C + O₂ → CO₂ ΔH = –393.5 kJ

CaCO₃ → CaO + CO₂ ΔH = +178.3 kJ

2H₂ + O₂ → 2H₂O + 571.6 kJ

N₂ + O₂ + 180.5 kJ → 2NO