Calcium metal reacts with phosphoric acid

Subject:ChemistryPrice: Bought3

Share With

Calcium metal reacts with phosphoric acid. What mass of precipitate is produced when 53.4 g of calcium reacts with excess phosphoric acid? Hint: Write a balanced chemical reaction equation first. Do not show your work in the space provided. Record only your final answer with the correct number of significant digits and the proper units. Answer:

Sodium metal is a soft silvery metal. Sodium metal reacts vigorously with water to produce sodium hydroxide and hydrogen gas. What mass of hydrogen can be produced from 9.02 g of sodium? 2 Na(s) + 2 H2O(1) - 2 NaOH(aq) + H2(g) Do not show your work in the space provided. Record only your final answer with the correct number of significant digits and the proper units.

Potassium chlorate should be handled with care because it reacts vigorously with combustible materials. If potassium chlorate is heated gently, the crystals melt. Further heating decomposes the compound to produce potassium chloride and oxygen gas. If 208 g of potassium chlorate is reacted, how many moles of oxygen are produced? 2 KCIO3(S) - 2 KCI(s) + 3 02(9) Record only your final answer rounded to the correct number of significant digits and include proper units. Answer:

The last step in the production of nitric acid is represented by the following equation: 3 N02(g) + H200) —, 2 HNO3(aq) + N0(g) Calculate the moles of nitric acid produced when 7.03 mol of nitrogen dioxide react with excess water. Record only your final answer rounded to the correct number of signi?cant digits and include proper units. Answer: |:|

Before the use of CFCs, sulfur dioxide was used as a refrigerant. A sample of sulfur dioxide gas undergoes a simple decomposition react 8 502(9) - S8(s) + 8 02(9) Calculate the number of moles of oxygen gas produced in addition to the production of 1.16 mol of sulfur. Record only your final answer rounded to the correct number of significant digits and include proper units. Answer:

Sodium metal and white phosphorus react to form a compound that is so dangerous it is not allowed to be transported on passenger aircraft. 12 Na(s) + P4(s) - 4 Na3P(s) How many moles of sodium metal are needed to react completely and form 3.3 mol of sodium phosphide? Record only your final answer rounded to the correct number of significant digits and include proper units. Answer:

Sodium metal and white phosphorus react to form a compound that is so dangerous it is not allowed to be transported on passenger aircraft. 12 Na(s) + P4(s) - 4 Na3P(s) How many moles of sodium metal are needed to react completely and form 3.3 mol of sodium phosphide? Record only your final answer rounded to the correct number of significant digits and include proper units. Answer:

A student mixes solutions of barium chlorate and rubidium sulfate and observes the formation of a precipitate. a. Write the balanced chemical equation. b. Write the ionic equation. c. List the spectator ions(s). d. Write the net ionic equation.