During photosynthesis, water and carbon dioxide react to form oxygen and glucose. Is it a valid CLAIM that the products differ from the reactants of photosynthesis? Y or N

When paper is burned, the mass of the remaining ash is less than the mass of the original paper. What is your CLAIM?

The metal sodium (Na) and the gas chlorine (Cl2) react to form sodium chloride, known as table salt (NaCl). Why are the products different from the reactants?

2C2H6 + 7O2 produces 4CO2 + 6H2O. Which substance is a product in this reaction?

Solid magnesium, Mg, reacts with oxygen gas, O2, to form the solid magnesium oxide, MgO. Which is a balanced chemical equation?

The chemical formula for hydrogen peroxide is H2O2. Explain what the letters and numbers in the chemical formula represent.

When coal is burned, sulfur is released into the air, where it reacts with oxygen to produce sulfur dioxide and sulfur trioxide. Your CLAIM?

Which number completes the balanced chemical equation showing the process of rusting? 4Fe + 3O2 produces ____Fe2O3

3NaOH + H3PO4 produces Na3PO4 + 3H2O. Your CLAIM?

Pb(NO3)2 + 2NaI produces PbI2 + 2NaNO3. Your CLAIM?

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