H3PO4 ? K3PO4 H2O 3. КОН + SnO2 H2 ? Sn H2O NH3 O2 ? NO + H2O 5. + 4.

Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. When 4.78 g of magnesium ribbon burns with 7.61 g of oxygen, a bright, white light and a white, powdery product are formed. Enter the balanced chemical equation for this reaction. Be sure to include all physical states. equation: What is the limiting reactant? охудen O magnesium The reaction goes to completion, but in the process of recovering the product, some of it was lost. The the percent yield for the reaction is 82.8%. How many grams of product are recovered? mass of product recovered: How many grams of the excess reactant remain? Assume the reaction goes to completion. mass of excess reactant:

What is the mass of the initial sample burned?

Correctly balance the following chemical equation. When there is no coefficient to add enter the number 1 into the box. Al + Cuclz--> AlCl3 + Cu

Write a balanced chemical equation based on the following description: liquid C₇H₈O is burned with oxygen gas to produce gaseous carbon dioxide and water vapor

Ammonia (NH3) is a weak base. Melting point of ammonia is -78 Celsius degrees and boiling point is -33 Celsius degrees. Therefore, pure ammonia appears in gaseous form in room temperature.    a) Preparation of ammonia  Gaseous ammonia (NH3) can be prepared by a reaction where Hydrogen gas  (H2) and Nitrogen gas  (N2) reacts. Write a reaction equation to this reaction. Balance the reaction equation if needed.   b) Behavior of gases Explain the diffusion of gases.   c) Change of temperature The closed container filled with gaseous ammonia is moved from room temperature into a freezer. The temperature on freezer is -35 Celsius degrees. Explain shortly on your own words, what kind of changes does the cooling cause and why.

Write a balanced chemical equation based on the following description: the reaction of gaseous C_{5}*H_{4} with oxygen gas produces gaseous carbon dioxide and water vapor

Balance the following equations (be sure to first convert any chemical names into formulas). Show all steps for balancing or write a brief explanation of your mental process if you were able to balance it in your head. FeCl3 + NaOH → Fe(OH)3 + NaCl P + O2 → P2O5 Lead(II) hydroxide reacts with hydrogen chloride to produce water and lead(II) chloride. Zinc sulfide reacts with aluminum phosphide to produce zinc phosphide and aluminum sulfide.

Balance the chemical equation.

4 In the next step, the magnesium hydroxide reacts with hydrochloric acid to produce an aqueous solution of magnesium chloride and water. (a) Write the word equation and the balanced chemical equation. (b) Identify the type of chemical reaction.