A solution contains 7.64×10-3 M nickel(II) nitrate and 1.34×10-2 M lead acetate. Solid potassium hydroxide is added slowly to this mixture. What is the concentration of lead ion when nickel ion begins to precipitate?

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?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it