Explain which of the compounds represent the MOST OXIDIZED and MOST REDUCED class? (2+2 = 4 points)

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.