Explanation:
The volume of the copper block is:

The density of copper is 8.96 g/cm³
So the mass of the copper block is

or 126.44352 kg.
Ca= Calcium, and (CO3) = Chloride. Ca(CO3) is Calcium Chloride!
Answer:
temperature
amount
Explanation:
Under the postulate of Boyle's law, both temperature and amount(number of moles) are kept constant.
According to Boyle's law "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"
Based on the premise of this law, both temperature and amount of substance is kept constant.
C.
Water is polar because one side of the molecule is positive and the other is negative.