How do u do which of these expressions are equivalent.. lol

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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.