At a constant temperature, a sample of a gas in a balloon that originally had a volume of 2.2 l and pressure of 749 torr has a change of pressure to 629 torr. calculate the new volume in liters.

What is the percent CdSO4 by mass in a 1.00 m aqueous CdSO4 solution?

What does it mean for a substance to dissolve? A. It drops into the solvent. B. It floats in the solvent. C. It is absorbed into the solvent. D. It gets bigger in the solvent.

A water molecule consists of an oxygen atom and two hydrogen atoms covalently bonded in a bent shape. Oxygen however, attracts the shared electrons more strongly than the hydrogen atoms. This structure leads to which important property of water? a.

Liquid Q is a polar solvent and liquid R is a nonpolar solvent. On the basis of this information, you would expect: Question 9 options: 1) both liquids to be miscible with a third liquid T 2) liquid Q to be miscible with liquid R 3) NaCl to be

Write the lewis structure for ch2clcoo-. assign a formal charge for any atom with a non-zero formal charge.

4NH3 (g) + 502 (g) - >6H20g) + 4NOg) What is the enthalpy change for this reaction?

Carbon is black, crystalline and hard. Oxygen alone is a gas. How does the substance that is formed when these two elements combine differ from carbon?

When should you read the label on a chemical container?

How does acetaldehyde impurity arise in the fermentation?

What are the three parts that make up Earth's mantle?