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Calcium reacts with oxygen to form calcium oxide. The chemical equation for this reaction is Ca + O2 = CaO. What is the product, or what are the products, of this reaction?
Magnesium and nitrogen react to form magnesium nitrate. Which of the following expressions represents this chemical reaction?
Is the mass of the reactants always equal to the mass of the products in a chemical reaction?
Which of the following is the balanced equation for P + O2 --> P2O5?
Manganese reacts with sulfuric acid to form manganese sulfate and hydrogen. What are the products in this reaction?
Which of the following equations is balanced?
Why must chemical equations be balanced?
Calcium reacts with oxygen to form calcium oxide. The chemical equation for this reaction is Ca + O2 = CaO. What is the reactant, or what are the reactants, in the equation?
Which of the following shows the balanced equation for Ca + O2 --> CaO?
The equation 2NaNO3 + CaCl2 --> 2NaCl + Ca(NO3)2 is balanced. How many atoms of oxygen are there on each side of the equation?