The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

A. in physical equilibrium

B. in chemical equilibrium

C. that goes to completion

D. that does not change

If the temperature of a gas increases, describe what should happen to the pressure of the gas. Assume the volume and amount of gas remain constant.

In ordered to be considered science, something must be A) testable & obvious B) believable & trust worthy C) testable & observable D) functional & observable

Is mass conserved in a chemical reaction?

What is the compound name for the ion chemical formula AgBr?

H2 (g) + I2 (g) ↔2HI (g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices

Running a mile involves

How many calories are there in a 255 Food Calorie snack bar? a. 1 x 103 b. 2.55 x 105 c. 1.07 x 103 d. 60.9 e. none of the above

What is the greatest amount of ammonia (NH3) in moles that can be made with 4.7 mol N2 and 6.9 mol H2? Which reactant is limiting? How many moles of excess reactant will be left after the reaction?

Which one of these elements is an alkaline earth metal

Write the chemical equations for the neutralization reactions that occurred when hcl and naoh were added to the buffer solution.