4. Magnesium undergoes a single displacement reaction with hydrochloric acid. Balanced Equation: How many grams of hydrogen gas will be produced from the reaction of 3.00 g of magnesium with 4.00 g of hydrochloric acid? Identify the limiting and excess reactants. 5. Solid sulfur (S, not S8) reacts with oxygen gas to produce sulfur trioxide gas. Balanced Equation: wugon what is the limiting reactant?

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A: Hi there! Since you have posted multiple questions, we will answer the first question for you.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".