Haynes Burgess

04/17/2023 · Junior High School

8. Lead(II) nitrate reacts with potassium iodide to form lead(II) iodide and potassium nitrate. Write the balanced equation for this double-replacement reaction. 9. Circle the letter of the correct answer. Calcium carbonate, \( \mathrm{CaCO}_{3} \) reacts with hydrochloric acid, HCl , in a double-replacement reaction. What are the products of this reaction? a. calcium chloride, \( \mathrm{CaCl}_{2} \), and carbonic acid, \( \mathrm{H}_{2} \mathrm{CO}_{3} \) b. calcium hydride, \( \mathrm{CaH}_{2} \), chlorine, \( \mathrm{Cl}_{2} \), and carbon dioxide, \( \mathrm{CO}_{2} \) c. calcium hydrogen carbonate, \( \mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \), and chlorine, \( \mathrm{Cl}_{2} \) d. calcium perchlorate, \( \mathrm{Ca}\left(\mathrm{ClO}_{4}\right)_{2} \), and methane, \( \mathrm{CH}_{4} \) 10. Is the following sentence true or false? A combustion reaction is a reaction in which a substance reacts with carbon dioxide, often producing heat and light. 11. Methane, \( \mathrm{CH}_{4} \), burns in oxygen to form carbon dioxide and water. Write the balanced equation for this reaction. 12. Is the following sentence true or false? The reaction that forms water can be classified as either a synthesis reaction or a combustion reaction.