2. Zinc reacts with hydrochloric acid according to the equation: How many moles of H are...
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2. Zinc reacts with hydrochloric acid according to the equation: How many moles of H₂ are produced from 20.0 g of Zn? (4 marks) 3. How many moles of HCI are required to make 500 ml of a 3.0 mol/L solution of HCI? (2 marks) Zn + 2HCI → ZnCl₂ + H₂ 4. Briefly describe one method used to make a solution of a known concentration. (2 marks) 5. What volume of a 10 mol/L H2SO4 solution is needed to make 1 L of 1.0 mol/L solution of H 2SO4? (3 marks) 6. How many grams of O2 are produced in the decomposition of 54 g of water in the following reaction? 2H₂O → 2H2 + O2 (5 marks) 2. Zinc reacts with hydrochloric acid according to the equation: How many moles of H₂ are produced from 20.0 g of Zn? (4 marks) 3. How many moles of HCI are required to make 500 ml of a 3.0 mol/L solution of HCI? (2 marks) Zn + 2HCI → ZnCl₂ + H₂ 4. Briefly describe one method used to make a solution of a known concentration. (2 marks) 5. What volume of a 10 mol/L H2SO4 solution is needed to make 1 L of 1.0 mol/L solution of H 2SO4? (3 marks) 6. How many grams of O2 are produced in the decomposition of 54 g of water in the following reaction? 2H₂O → 2H2 + O2 (5 marks)
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