When writing electron configuration the 3d block comes after the 4s block.

A buffering solution is made from acetic acid (CH3CO2H) and its conjugate base (CH3CO2-). Which reaction describes the buffering effect of the solution when an acid is added to the solution? a. CH3CO2H (aq) + OH (aq) → CH3CO2 - (aq) + H2O (l) b.

An aqueous solution of a soluble compound (a nonelectrolyte) is prepared by dissolving 33.2 g of the compound in sufficient water to form 250 ml of solution. the solution has an osmotic pressure of 1.2 atm at 25 °c.

How many bacteria can fit into an animal cell

Why is sodium sulfate a solid state at room temperature?

Use the information provided in the table to determine the Kb for acetate ion, the conjugate base of acetic acid. 1.8 * 10-19 5.6 * 10-10 2.8 * 10-9 1.8 * 1010

Explain why a piece of aluminum or magnesium can be used to remove tarnish, which is mostly silver sulfide, on silverware.

Why is it important for an engineer who is designing a new home-cooling/heating system to have knowledge about the transfer of heat?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) Also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the

What is the name of the outermost layer that forms a boundary around the outside of each cell

Intact cells of two unknown cell types were placed into solutions with different concentrations of NaCl. Type I cells swelled and burst in the solution with the lowest concentration of NaCl.