What is the Mass for NaOH?

Which of the following elements would be the most reactive? a. iodine b. silicon c. silver d. argon

If you mix 4.5 g of hcl in enough water to make 0.9 l (900 ml of solution, what is the molarity of the solution?

In general, when a substance changes from a solid to a liquid, A. the density of the substance increases. B. the substance no longer has density since density is a property only solids have. C. the density of the substance decreases. D.

What will happen to the chemical equilibrium if MgCl2 is added? The chemical equilibrium of the system will be unaffected. The chemical equilibrium of the system will shift to the right to favor the forward reaction.

Why is a solution not a pure substance

Consider the equilibrium system: 2ICl (s) ⇄ I2 (s) + Cl2 (g) Which of the following changes will increase the total amount of of Cl2 that can be produced?

For your recrystallization, you will need to make 75% ethanol in water from 95% ethanol in water. Calculate how much 95% ethanol and water you will need to make 20 mL of 75% ethanol. Hint: You may want to use M1V1=M2V2.

Why does increasing the temperature of the reactants increase the rate of a chemical reaction?

Molecules are made up of small parts called

A student uses a magnet to move a 0.025 kg metal ball. The magnet exerts a force of 5 N, which causes the ball to begin moving. What is the acceleration of the ball when it begins to move?