Which are true statements?

Check all that apply.

A. Moles are counted in kilograms.

B. A mole always weighs 6.02 * 1023 g.

C. The mass of 1 mol is the same as the atomic mass in grams.

D. Avogadro's number is 6.02 * 1023.

What are the units of measurement for molarity?

The name for Na2 O in chemistry

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The first step in scientific inquiry would be

For which of the following equilibria does Keq = [O2]? a. O2 (l) O2 (g) b. 2O3 (g) 3O2 (g) c. 2H2O (l) 2H2 (g) + O2 (g) d. 2Hg (s) + O2 (g) 2HgO (s) e. C (s) + O2 (g) CO2 (g)

What reactants form a combustion reaction? O A. A hydrocarbon and oxygen O B. Hydrogen and water vapor O C. A hydrocarbon and water O D. Water vapor and oxygen

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What is the si unit for the quantity of particles in a sample?

How many moles of ammonia are produced when 8 moles of nitrogen gas react with hydrogen gas?

If a mass of gas is confined in a closed container with a movable piston above the gas and a small downward force is applied to the piston, the volume of the gas will be a. increased considerably. b. reduced considerably. c. reduced slightly. d.