2. How many grams aluminum hydroxide is formed by mixing a solution of 15 g potassium hydroxide and a solution 30 g aluminum chloride? 3. The mixture of 2 moles of H2 and 2 moles of O2 gases react to produce water. Which reactant is in excess and which one is limiting? What is the mass of produced water?
4. Given: N2(g) + 3H2(g) → 2NH3(g).
20 L of N2 and 15 L of H2 gases react. Which gas is in excess? What is the mass of excess gas?
3. Equal masses of sodium and chlorine gas react in a closed container to give 0.1 mol of sodium chloride. Which element is in excess? Calculate the mass of the element which remains

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