Everything in the universe is

made up of what?

Explain why solution of silver nitrate and solution of sodium chloride is not reversible?

What defines the pressure of a gas

1. Why do rings stay shiny?

How much does the air weigh within a column that is 1 square inch in area that extends from sea level all the way to the top of the atmosphere?

What would be the volume of 12 moles of a gas at STP

How do you classify solutions as acidic, basic, or neutral?

Which statements describe abiotic factors in an environment?

A ball rolling across the ground in Death Valley will slow and eventually stop. Why? - the ball's kinetic energy evaporates. - the ball's force is destroyed. - the friction of the ball changed the force to negative ions.

Calculate ∆h0 for the following reaction. br2 ( g. → br2 (l) ∆hf0 br2 ( g. = 30.91 kj/mol; ∆hf0 br2 (l) = 0 kj/mol)

Ethyl alcohol has a latent heat of vaporization of 850 J/g. Water has a latent heat of vaporization of 2260 J/g. Container A contains 1.0 kg of ethyl alcohol. Container B contains 1.0 kg of water. Both liquids are brought to a boil.