What is the most stable ion then arrange from smallest to largest

What is the most stable ion then arrange from smallest to largest? K Mg Al Se Cl Which are isoelectric with Argon? O2- Ca2+ S2- Se2-

State which compound in each of the following pairs of ionic substances has the most exothermic lattice and why

State which compound in each of the following pairs of ionic substances has the most exothermic lattice and why NaCl, CaS Li2O, Na2O LiF, NaCl MgO, CaS plus two requirements that should be satisfied for a molecule to be polar

How many electrons should appear in the Lewis structure of the following

how many electrons should appear in the Lewis structure of the following: H3O+ SCN- HCO3- O2- N2O4 BF3 dtermine the formula change on the following Cl-O ClO4-

What is the pH of a solution?

If I have 500mL of a buffer solution containing 0.2 M acetic acid and 0.3 M sodium acetate, what will the pH of this solution be after the addition of 20mL of 1.00 M NaOH solution? Can you please show me all steps?

General Chemistry

The respective standard reduction potentials in V for Ni2+ and Ag+ are -0.28 and +0.80. The oxidizing agent in a cell based on nickel and silver is __________. a. the salt bridge b. Ag+ c. Ag d. Ni e. Ni2+ Respective standard reduction potentials in V for Fe2+ and Ag+ are -0.44 and +0.80. Determine the value of E°cell (in V) for a voltaic cell in which the overall reaction is: Fe + 2Ag+ -> Fe2+ + 2Ag. a. 1.16 b. 2.04 c. 1.68 d. 0.36 e. 1.24 The more _____ the E ° value for a half-reaction, the greater the tendency for the reactant in the half-reaction to act as an oxidizing agent. a. negative b. positive c. exothermic d. endothermic e. extensive ... click for more