Avogadro's number is 602,213,700,000,000,000,000,000. What does ...

[arivle123]

Avogadro's number is 602,213,700,000,000,000,000,000. What does this number represent?
 
  A) The total number of atoms in 10 grams of a substance
  B) The total number of moles in 10 grams of a substance
  C) The total number of atoms in 12 grams of carbon-12
  D) The total number of moles in 12 grams of carbon-12

Question 2

Which of the following is true regarding constant systematic errors?
 
  A) The slope and the x-intercept of the regression line are affected.
  B) The slope of the regression line differs from the true value.
  C) The x-intercept of the regression line becomes equal to the y-intercept.
  D) The y-intercept of the regression line differs from the true value.

[bob]

Answer to Question 1

C

Answer to Question 2

D