Which two samples of gas at STP contain the same total number of molecules?

(1) 1 L of CO (g) and 0.5 L of N2 (g)

(2) 2 L of CO (g) and 0.5 L of NH3 (g)

(3) 1 L of H2 (g) and 2 L of Cl2 (g)

(4) 2 L of H2 (g) and 2 L of Cl2 (g)

2. When a teaspoonful of sugar is added to water in a beaker, the sugar dissolves. The resulting mixture is 1) a compound 2) a solution 3) a suspension 4) an emulsion

Write 24/11 Na in hyphanated form

Witch of these is an example of an environment changing slowly

1. CaSO4 (s) ⇋ Ca2 + (aq) + SO42 - (aq) When Na2SO4 is added to the system, how will the equilibrium shift? A) The system will shift left and the amount of CaSO4 would increase. B) The system will shift left and the amount of CaSO4 would decrease.

MgCO3 (s) → Mgo (s) + CO2 (g) In the chemical reaction above, what state is Mgo in? a. Liquid b. Gas c. Aqueous d. Solid

23 For a reaction at equilibrium, which change can increase the rates of the forward and reverse reactions?

If the formula for potassium chlorate is KClO3 and the formula for magnesium fluoride is MgF2, then what isthe formula for magnesium chlorate?

How can you tell if a chemical reaction has occurred?

An engineering team is conducting a trial launch of a new rocket. Which part of the engineering process is the team in?

What is a physical property of copper