Table I

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Table I

At 101.3 kPa and 298 K, what is the total amount of heat released when one mole of aluminum oxide, Al₂O₃(s), is formed from its elements? *

1 point

393.5 kJ

837.8 kJ

1676 kJ

3351 kJ

Which reaction releases the greatest amount of energy per 2 moles of product? *

1 point

2CO(g) + O₂(g) → 2CO₂(g)

4Al(s) + 3O₂(g) → 2Al₂O₃(s)

2H₂(g) + O₂(g) → 2H₂O(g)

N2(g) + 3H₂(g) → 2NH₃(g)

According to Table I, which salt releases energy as it dissolves? *

1 point

KNO₃

LiBr

NH₄NO₃

NaCl

According to Reference Table I, which statement best describes the formation of HI(g)? *

1 point

It is exothermic, and heat is released.

It is exothermic, and heat is absorbed.

It is endothermic, and heat is released.

It is endothermic, and heat is absorbed.

According to Reference Table I, when 2 moles of H₂O(g) are formed from its elements, *

1 point

484 kJ of heat is absorbed

484 kJ of heat is released

242 kJ of heat is absorbed

242 kJ of heat is released

Based on Reference Table I, when 2.00 moles of NaOH(s) dissolves in water *

1 point

44.5 kJ of energy is released and the temperature of the water increases

44.5 kJ of energy is absorbed and the temperature of the water decreases

89 kJ of energy is released and the temperature of the water increases

89 kJ of energy is absorbed and the temperature of the water decreases

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