At 60°C, how much Pb(NO3)2 can dissolve in 55 grams of water? (Enter only 2 digits in your answer, no units please)

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.