What is the impacts experienced by russian and europe due to the solar storm??

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?