In the reaction of nitrogen gas n2 with hydrogen gas h2 to form ammonia gas nh3, how many moles of hydrogen are needed to react with 1.22 mol of nitrogen

What hydrocarbons burn completely in an excess of oxygen, the products are A) carbon monoxide and water B) carbon dioxide and water C) carbon monoxide and carbon dioxide D) carbon dioxide and carbon

What is the molarity of a solution with a volume of 974 mL containing 17 g of CuSO4?

What is X is this reaction? NaOH + X - -> NaCH3COO + H20

A mixture was found to contain 3.50 g of sugar, 4.80 g of NaCl, and 7.20 g of sand. What is the percentage of sand?

Question 1 how many moles of helium are found in a balloon that contains 5.5 l of helium at a pressure of 1.15 atm and a temperature of 22.0 ºc?

The double bond between carbon and oxygen is similar to an alkene C-C, except that C o is: a) shorter and weaker. b) shorter and stronger c) longer and weaker. d) longer and stronger.

Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0576 M 17.1 s after the reaction starts and is 0.0249 M 97.8 s after the reaction starts.

What is the heat of solution? A) the amount of heat released when a vapor changes into a liquid B) the amount of heat absorbed or released when a solid dissolves C) the amount of heat required to change a solid into a liquid D) the amount of heat

Write a balanced equation for each of these chemical reactions potassium phosphate + calcium nitrate

What is the mass number of an ion with 106 electrons, 158 neutrons, and a + 1 charge?