need help w/these simple HEAT chemistry questions.....?

Question

84) A ice cube @ 0 °C was dropped into 30.0 g of
water in a cup @ 45,0 °C. @ the instat that all
of the ice was melted, the temp of the
water in the cup was 19.5 °C. What was the
mass of the ice cube?
1)The specific heat of ethaul Is 4.60 kJ/mol.
How may kilojoules are required to melt 24.5 g
of ethaol @ its freezing point?
a.2.45kJ c.245kj
b.5.33kJ ll.l8.8kl
2) How much heat, in kilojoules, must be added to
178 g of water to increase the temp of
the water by 5.0 °C ?
a.890kJ c.3.7kJ
b. 36 kJ d. 0.093 kJ

Answer 1

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