The standard gibbs free energy of formation of ___ is zero: 1. h2o (l) 2. na (s) 3. h2 (g)

In a salt what charge does the halogen element have when it gains an electron?

The rate at which energy is transferred is called a. joules. b. power. c. work. d. time.

What is the colour of FeSo4, 7 H2O crystal how does the colour change upon heating? Give balance equation for the change

Which of the following subshells will fill first in the third energy level? D F P S

When cuso4 • 5h2o is heated in a crucible, there is a loss of water. how should a student determine the amount of water lost?

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?