What is tihe minimum temperature needed to dissolve 130 grams of KNO3 in 100 grams of water

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?

A sample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. The pressure of the sample is 0.90 atmosphere and the temperature is 298 K. What is the volume of the sample at STP? a. 41 mL b. 49 mL c. 51 mL d. 55 mL

Explain the meaning of the expression "like dissolves like."

True or false. Positively charged objects attract other positively charged objects.

Write equations for the initiation and propagation steps for the formation of dichloromethane by free radical

Which of the following is not a step in the conversion of 25 L to hm^3

Why can't the subscripts be changed?

What do parentheses around a group of atoms in a chemical formula indicate?

How do you make quesadillas?

Compare the air at 18,000 feet (atmospheric pressure 280 mm Hg) to the air at sea level (760 mm Hg). What specific changes in the primary atmospheric gases (nitrogen, oxygen, carbon dioxide) might occur