A sample of gas occupies a volume of 54.6 mL. As it expands, it does 149.1 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas?

Explain why the study of chemistry should be important to everyone

Two atoms with the same number of protons but a different number of neutrons are A. ions of the same element. B. in the same column of the periodic table. C. next to each other on the periodic table. D. isotopes of the same element.

Write a sentence that explains why light is not matter

What volume of 0.182 m na3po4 solution is necessary to completely react with 90.7 ml of 0.103 m cucl2?

When a chemical reaction is at equilibrium, the concentration of each reactant and the concentration of each product must be (1) constant (2) variable (3) equal (4) zero

Action - reaction forces don't cancel each other. A. True B. False

An equilibrium is dynamic. True False

In a lab, a student dissolves 6.9 g of sodium chloride (NaCl) in 125 g of water (H2O). What is the molality concentration of the solution?

Audrey is driving 50 miles in 2 hours what is her average speed?

Water has a specific heat of 4184 J / (kgK) how much energy is needed to increase the temperature os a kilogram of water 5C?