Draw a picture showing what happens on the molecular level when the following substances are added to water: a. A soluble compound that dissociates into ions

b. A soluble compound that does not dissociate into ions

c. An insoluble compound

Thank you so much! I'm absolutely stumped on this question.

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth

How are isotopes of the same element alike?