Ernest Rutherford bombarded nitrogen-14 with alpha particles and ...

[geoffrey]

Ernest Rutherford bombarded nitrogen-14 with alpha particles and produced oxygen-17 and a proton. What was the significance of this experiment?
 
  A) It showed that most of the mass of an atom is in its nucleus.
  B) It was the first time that protons were produced.
  C) It showed that protons were part of the nucleus for an atom other than hydrogen.
  D) It showed that the nucleus contains protons and neutrons.

Question 2

A serving of a low fat cream cheese contains 6 g of fat and 3 g of protein. What percentage of calories comes from fat? (1 g fat = 9 kcal) (1 g protein = 4 kcal)
 
  A) 70
  B) 69
  C) 20
  D) 82

[joshraies]

Answer to Question 1

C

Answer to Question 2

D