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ValentinkaMS [17]
3 years ago
12

Solar panels are used to harness sunlight energy. How could solar panels be used in a house?

Chemistry
1 answer:
Oduvanchick [21]3 years ago
3 0

Answer:

D to absorbe energy from the sun's radiation to heat wats

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What is the energy change if 84.0 g of calcium oxide (CaO) reacts with excess water in the following reaction?
pochemuha
   The energy change  if 84.0 g   of CaO  react  with  excess  water is  98KJ of heat is released.

calculation
heat  =  number of moles  x  delta H

delta H = - 65.2  Kj/mol

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moles = mass/molar mass
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