A mechanic repaired 28 cars and 46 trucks last month. He spent 2.5 hours repairing each of these vehicles. Which equation can be used to find h, the total number of hours the mechanic spent repairing these vehicles?

How many moles are present in 585 g of sodium chloride?

Element "yellowium" has three naturally occurring isotopes. Below are the masses and relative abundance of each isotope. Find the average atomic mass of yellowium. yellowium-15 15.012 amu 14.23% yellowium-17 16.988 amu 33.48% yellowium-19 19.

What is the volume of a solution that has a specific gravity of 1.2 and a mass of 185 g?

What are members one through six of the alkyne family

A piece of sodium metal undergoes complete reaction withwater. a. Write the complete balanced equation governing thisreaction. b. The hydrogen gas generated is collected over water at25.0*C. The volume of the gas is 246 mL measured at 101.3kPa.

How many molecules are in 4.50 moles of water

N aqueous solution of sodium hydroxide is standardized by titration with a 0.154 m solution of hydrochloric acid. if 17.5 ml of base are required to neutralize 17.6 ml of the acid, what is the molarity of the sodium hydroxide solution?

Consider the positions of barium (Ba), sulfur (S), silicon (Si), and calcium (Ca) on the periodic table. The atoms of which element require the least amount of energy to give up an electron when forming chemical bonds?

what is way to find the numbers of liters in 8 kilometers? (A.) Add 5,000 and 3, because you are adding 3 kiloliters to 5,000 liters. (B.) Multiply 8 by 3,000, because each kiloliter has 3,000 liters. (C.

How much energy must be added to 2 mol H2O (g) to cause it to decompose into H2 and 02? KJ