Use the changes in oxidation numbers to determine which elements are oxidized and which are reduced in these reactions. ( note: it is not necessary to use balanced equations. a. C + H2SO4 —->
CO2 + SO2 + H2O
b. HNO3 + HI —-> NO + I2 + H2O
c. KMnO4 + HCl —-> MnCl2 + Cl2 + H2O + KCl
d. Sb + HNO3 —-> Sb2O3 + NO + H2O

Please help me this is due tonight and I can’t figure it out

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.