A solution can be both

a. Dilute and concentrated

b. Saturated and dilute

c. Saturated and unsaturated

d. Supersaturated and saturated

e. None of these

2 ways in which the carbon is stored for a long time

True or false. An excited state is less stable than a ground state

A chemist prepares 1.0 L of a buffer solution by preparing an aqueous solution containing 1.00 mol of H2PO4-, then adding 0.27 moles of KOH to convert the acid into its conjugate base. What is the final pH of the solution? The Ka for H2PO4 - is 6.

To make a 4.00 M solution, how many moles of solute will be needed if 12.0 liters of solution are required? A: 6 mol B: 12 mol C: 48 mol D: 120 mol

Which equation represents sublimation? 2Al+3I=2AlI HgCl=HgCl

A solid substance turns into a liquid. Which best describes this change?

List two things you know about nonrenewable energy

Does a mole of hydrogen have the same mass as a mole of oxygen? explain your answer.

A 0.500-L sample of H₂SO₄ solution was analyzed by taking a 100.0mL aliquot and adding mL of. After the reaction occurred, an excess of ions remained in the solution. The excess base required mL of for neutralization.

Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia and magnesium hydroxide. Write and balance the equation.