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Copper sulphide has the formula CuS and copper sulphate is CuSO4
CuS is a compound of sulphur and copper only while CuSO4 has these 2 elements plus Oxygen
J.J. Thomson hypothesized and discovered that the atom was not the smallest unit of matter but that instead there were much smaller units. He discovered "sub-atomic particles" which make up atoms. The sub-atomic particle that Thomson discovered was the electron. He discovered this through a process of experiments testing cathode rays.
Answer:
20g of water would freeze at the Same temperature
The answer is 800J
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