What your question for number 3
Answer:
Copper nitrate is a blue coloured crystal.which copper nitrate is heated it loses the water molecule and then when is further heated it decomposes to give redddish brown gas,nitrogen dioxide and oxygen.
Explanation:
Specific heat capacity, which is measured in J/g-°F
Answer: B. Adding more protons to a positively charged body until the number of protons matches the number of electrons
Explanation:
took test got it right