Select true or false: if the ph of pure water is 7.0, the hydroxide ion concentration in pure water is 1 * 10-7 m.

A solution of zinc nitrate is added to a solution of magnesium sulfate. express your answer as a chemical equation. identify all of the phases in your answer. enter no reaction if no reaction occurs.

Which of the following will decrease the rate of dissolving?* A) increasing the amount of agitation B) increasing the temperature of the solvent C) increasing the particle size of the solute

How many moles of C8H18 contain 9.25 * 1024 molecules of C8H18?

Determine the number of atoms in a sample of nickel that has a mass of 8.30 x 10-12 g.

Chemical reactions that release energy A. will not occur. B. need catalysts to occur. C. will always explode. D. often occur spontaneously.

For the following hypothetical reaction: 3A + 2B - > 3C. How many moles of C can you produce with 5 moles of A and excess B?

Which of the following statements is true of enzymes? A. they change shape after a reaction B. They don't provide an active site for substrates to bind in a reaction C. They're unusable after a reaction D.

How many moles of NaCl are present in 530 ml of a 1.52m NaCl solution

How much can 97 go in to 15

What is the predicted products for Ag+CuSO4