Which equation is not balanced?

A 2Mg(s) + O2(g) → 2MgO(s)

B 2Mg(NO3)2(s) → 2MgO(s) + 4NO2(g) + O2(g)

C MgO(s) + HCl(aq) → MgCl2(aq) + H2O(1)

D Mg(s) + CuSO4(aq) → MgSO4(aq) + Cu(s)

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?