Is the reactant an element or a compound
after 50 g of certain substance is heated in air until no further reaction occurs, 39.9 g of metal is left. is the reactant an element or a compound? explain
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A certain second-order reaction () has a rate constant of 1.65×10-3 at 27 and an initial half-life of 286 . What is the concentration of the reactant after one half-life?
A sample of Oxygen is collected in a 206 mL container over water at 15C, and the barometer reads 793 torr. What volume would the dry gas occupy at 704 torr and 15C? Water's partial pressure at 15C is 12.8 torr. Answer in units of mL.
Given the balanced equation representing a reacction. Determine the total number of moles of oxygen that react completely with 8.0 moles of C2H6
How many grams of oxygen are collected in a reaction where 222 mL of oxygen gas is collected over water at a temperature of 25°C and a total pressure of 697 torr?
Iron ore is produced through the following reaction in a blast furnace. If 4.00kg of iron(III) oxide reacts, how many moles of carbon monoxide are needed?
A student mixed 5.00 mL of a nickel(2) chloride solution with 5.00 mL of .100M sodium phosphate and a precipitate formed. How many moles of sodium phospahte were present in 5.00 mL of the solution?
Assume that the activation energy for a certain reaction is 173 kJ/mol and the reaction is started with equal initial concentrations of reactants.
A sample of hydrogen occupies a volume of 1.20 liters at a pressure of 425 kilapascals. If the temperature of the gas is constant, what would the new volume of the gas be at 615 kilapascals?
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