Which answer choice shows the correct ratio of moles Ni:PO4^3- for the reaction of aqueous NiCl2 with Na3PO4?

When 3.00 g of NH3(g) (M = 17.03 g/mol) reacts with 18.0 g of HCl(g) (M = 36.46 g/mol), what is the theoretical yield of NH4Cl(s) in grams?

When 100.0 mL of 0.100 M AgNO3 solution is mixed with 200.0 mL of 0.100 M NaBr solution in a coffee cup calorimeter, the temperature of the mixed solution rises from 23.48°C to 24.16°C. Ignore the heat absorbed by the calorimeter. Determine the limiting reactant.

When 50.0 mL of 0.104 M HClO4 and 75.0 mL of 0.0753 M NaOH are combined, 291 J of heat are produced. If the initial temperature of both solutions was 22.5°C, determine the final temperature of the solution. Assume the density of the solution is 1.00 g/mL and the specific heat capacity is 4.18 J/g°C.

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is CH4(g) + O2(g) → CO2(g) + H2O(g). This type of reaction is referred to as a complete combustion reaction. What mass of carbon dioxide (CO2) is produced when 16 grams of methane is completely combusted?

Zinc metal reacts with aqueous silver nitrate to form solid silver and aqueous zinc nitrate. If 2.00 g of zinc react with 2.50 g of silver nitrate, how many grams of silver will form?

How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0°C, can be produced from 5.566 g of Zn reacting with excess HCl? The partial pressure of water vapor is 18.65 mm Hg.

How many grams of O₂ are required to produce 9.64 g of H₂O in the combustion of butane according to the balanced equation: 2C₄H₁₀(g) + 13O₂(g) → 8CO₂(g) + 10H₂O(g)?

How many grams of alum (KAl(SO4)2·12H2O) can be produced from 20.0 g of aluminum (Al) when the reaction proceeds with 100% yield?