What mineral is the hardest known substance in nature?

Substances that have a define size and shape and vibrating particles that are close together are

4.62) (a) Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 750 mL of solution. (b) How many moles of KBr are present in 150 mL of a 0.112 M solution

What most likely happens when water loses heat?

Which phrase describes the charge and mass of a neutron? 1. a charge of + 1 and no mass 2. a charge of + 1 and an approximate mass of 1 u 3. no charge and no mass 4. no charge and an approximate mass of 1 u

Carbonated water is an example of which type of solute-solvent combination?

Which chemical found in tobacco is a stimulant drug

Each of the following reactions shows a solute dissolved in water. Classify each solute as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.

Name two events involving electrons that can result in the formation of chemical bonds between atoms.

Which element among elements 2, 4, and 6 has the lowest ionization energy?

What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° C?