When calcium carbonate is heated ,two new substances, calcium oxide and carbon dioxide are formed a)write a word equation for the above chemical reaction b)is calcium carbonate an element or a compound ?Explain

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Which three statements represent the benefits of performing experiments using computer simulations?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.