16. calculate the amount of heat energy that is needed (7. calcula
to raise the temperature of...
16. calculate the amount of heat energy that is needed (7. calcula
to raise the temperature of 1000.0 g of sand from ll released
21.1 °c to 37.8 °c
temperat
q=m*c*a+
a = (1000.0 g)(0.670 j/g°c)(37.8 °c-21.1 °c)
a = 11189 j
q = 11200 j (sig figs)
18. if 11.500 t of energy is added to a 1000,0 9
19. if 11
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