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Given the following thermochemical equation: 2NH3 + 4H2O 2NO2 + 7H2 ΔH= -142.5 kJ/mol, how much heat is released from the reaction of 20 g of H2O?
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
What sign does ∆H have in endothermic reactions?
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
A reaction does not start with less energy than it in ends with
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
Change in temperature is not a chemical property
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
Endothermic reactions always raise in temperature
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
Endothermic reactions lose energy to the surroundings
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
Which of the following is not a type of energy?
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
What happens to energy when things happen?
False
False
energy is transferred or conserved
acidic
False
True
-39.5 KJ
positive
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