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Which of these ions is the most stable?

Which could represent the reaction mixture after the complete combustion of acetaldehyde, CH3CHO?

Which of the following metals will not form a superoxide?

In a correctly balanced equation, the number of reactant molecules must equal the number of product molecules.

Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated.KClO3(s) → KCl(s) + O2(g) [unbalanced]What mass of oxygen gas is formed if 26.4 g of potassium chlorate decomposes completely?

The first step in the Ostwald process for producing nitric acid is as follows:4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g).If the reaction of 15.0 g of ammonia with 15.0 g of oxygen gas yields 8.70 g of nitric oxide, what is the percent yield of this reaction?

Aluminum reacts with bromine to form aluminum bromide (used as an acid catalyst in organic synthesis).Al(s) + Br2(l) → Al2Br6(s) [unbalanced]How many moles of Al are needed to form 2.43 mol of Al2Br6?

Methanol (CH3OH) is converted to bromomethane (CH3Br) as follows:CH3OH + HBr → CH3Br + H2OIf 12.23 g of bromomethane are produced when 5.00 g of methanol is reacted with excess HBr, what is the percentage yield?

What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical equation?V2O5(s) + 5Ca(l) → 2V(l) + 5CaO(s)

Potassium chloride is used as a substitute for sodium chloride for individuals with high blood pressure. Identify the limiting reactant and determine the mass of the excess reactant remaining when 7.00 g of chlorine gas reacts with 5.00 g of potassium to form potassium chloride.