Answer:
Option (2)
Explanation:
Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.
Answer:
density equals weigt divided by volume
Explanation:

Answer:
In a fossil fuel power plant the chemical energy stored in fossil fuels such as coal, fuel oil, natural gas or oil shale and oxygen of the air is converted successively into thermal energy, mechanical energy and, finally, electrical energy.
Answer:
due to the bicarbonate of CaCO3
Explanation:
fractional distillation method is used to obtain petrol from petroleum...
hope it helps