Identify the molar mass of each of the following.

Cr:

Ch4:

Al2 (SO4) 3:

Br2:

How many grams of H20 is formed with 0.75 moles of NaOH

Calculate the moles of calcium chloride (CaCl2) needed to react in order to produce 85.00 grams of calcium carbonate (CaCO3). use the balanced equation!

516 mL of a 3.82 M sodium sulfate (Na2SO4) solution is diluted ith. 875 L of water. What is the new concentration in molarity?

A drum used to transport crude oil has a volume of 162 L. How many grams of water, as steam, are required to fill the drum at 1.20 atm and 100°C?

What is the force that occurs when two objects rub together

Sodium phosphate and calcium chloride react to form sodium chloride and calcium phosphate. If you have 379.4 grams of calcium chloride and an excess of sodium phosphate, how much calcium phosphate can you make?

What is the maximum number of electrons in the second electron shell, closest to the nucleus?

Which compound is formed from its elements by an exothermic reaction at 298 K and 101.3 kPa?

Energy can be transformed from one form to another. The diagram shows one such process. Which energy transformation is represented in the diagram?

Mathematically define heat capacity with equations.