Answer:
2.9 M
Explanation:
Step 1: Given data
Moles of barium chloride (solute): 4.4 moles
Volume of solution: 1.5 liters
Step 2: Calculate the molarity of barium chloride in the solution
The molarity is a way to quantitatively express the concentration of a solute in a solution. The molarity is equal to the moles of solute divided by the volume, in liters, of solution.

The answer is C. condenses
The Atomic nucleus has a charge of 0.
Explanation: an atom consists of of positively charged nucleus, surrounded by one or more electrons (which are negatively charged.) The positive charges equal the negative charges so the atom ends up having no charge.
The volume of one mole of a substance is 22.4 L at STP for all GASES.
The principle of molar volume states that, one mole of any gas at STP [Standard Temperature and Pressure] will occupy the same volume as one mole of any other gas at STP. This volume is 22.4 liter/mol and is called the molar volume of a gas.
Answer:
Enthalpy of formation of KF = -555 kJ/mol
Enthalpy of formation of CsF = -539kJ/mol
Explanation:
Explanations are provided in the attachment below