what is the theoretical yield of magnesium oxide when 45.0 g of magnesium and 35.0 g of oxygen react? 2Mg(s)+O2-> 2MgO(s)a) 45.0 g b) 74.6 gc)80.0 gd) 88.2

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?