How many moles are in 456 g of CaCO3

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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