Complete and Balance the reaction. Include all states.

How much energy in kJ is released when 14.17 g of aluminum react with an excess of copper oxide? 3 CuO + 2 Al -> 3 Cu + Al2O3  △ H  = 1190 kJ/mol

Write a balanced chemical equation for the standard formation reaction of solid water H2O

CN–(aq) reacts with reacts with MnO4–(aq) to produce CNO–(aq) and MnO2(s).(i) What type(s) of reaction is this?(ii) Write a balanced chemical equation for this reaction.(iii) Which substance is the oxidizing agent?

A 5.44 g sample of a laboratory solution contains 1.85 g of acid. What is the concentration of the solution as a mass percentage?

Balance the following equations. When balancing equations for redox reactions in aqueous solution, it is necessary to add water molecules (H₂O) and either H+ (aq) in acidic solution or OH(aq) in basic solution to the equation. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank. If needed, use H+ for the hydronium ion.) a. b. Submit Answer 2+ Zn(s) + VO²+ (aq) + + + Ni(s) + CIO¯¯ (aq) Ni(OH)2 (s) + Cl(aq) (basic solution) + → Zn²+ (aq) + V³+ (aq) (acid solution) Retry Entire Group + + + 6 more group attempts remaining

A student reacts an unknown solid with an unknown liquid and makes the following observations: The solid dissolves to form a colorless solution. A gas is produced that is colorless, odorless, and has no effect on wet red or blue litmus paper. Which of the following pairs could be the unknown solid and unknown liquid? Select all that apply.     A. Mg(OH)2 (s) + 2 NH4Cl (aq)   B. BaCO3 (s) + 2 HCl (aq)   C. H2SO4 (aq) + ZnCO3 (s)   D. 2 HCl (aq) + Mg(OH)2 (s)   E. Ba(OH)2 (s) +  2 HNO3 (aq)   F. NH4Cl (s) + KOH (aq)

Using your scientific knowledge, write a scientific explanation for what could be done to increase the forward reaction of the following equation: CaO(s) + H₂O(1) ⇒ Ca(OH)2(s) + heat CLAIM.

Write the complete, balanced chemical equation for the following reaction on a separate sheet of paper. Provide products where they are not given. Assume that the reaction is spontaneous. Ammonia + oxygen → nitric acid + water Type in the coefficient and formula for the product in the equation that contains nitrogen.

How many grams of copper(II) oxide can be reduced to copper metal with 1.75 moles of H2?