Which symbol represents a particle that has the same total number of electrons as s2–?
(1) o2– (3) se2–
(2) si (4) ar

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.

0.88 moles of n2o5 (g) was placed in a sealed 1.00 l vessel. calculate the equilibrium concentration of n2o5. no2, and o2 and the equilibrium constant after equilibrium has been reached by 65.0% of the n2o5 decomposing.