Answer:
Explanation:
The formula for Mercury(II) Oxide is 
Balanced Equation: 
Stoichiometry: 
A reversible reaction is a chemicalreaction where the reactants form products that, in turn, react together to give the reactants back. Reversible reactions will reach an equilibrium point where the concentrations of the reactants and products will no longer change.
option a best explain what thermal energy is
Youre answer is all of the above because they all work
Chlorofluorocarbons (CFCs) are used generally in aerosols, sprays, perfume, refrigerants, insulation foams and other stuffs. Throughout its applications, the negative impacts weighed more than its benefits. Its greater setback is the contribution to the thinning of the ozone layer which exposes us more with the harmful ultraviolet rays from the sun.
