Which compounds are ionic and which are covalent?

• N2 • SiO2 • CaCl2

• CCl4 • AlCl 3 • LiBr

Atomic mass number of first 30 elements

An open box of bandages is on the floor. bandage wrappers are found nearby. What is the chemical treatment?

Molar mass of PT (SO4) 2

If the amount of dissolved solute in a solution at a given temperature is greater than the amount that can permanently remain in solution at that temperature, the solution is said to be

What is the advantage of using refrigerant identification equipment?

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?