Clicker #1 What is the average mass of one hydrogen atom? A) 1.008 amu B) 1.008 g C) 1.008 moles D) Both A and B are correct.

Clicker #2 How do these two numbers compare? A) # of H atoms are less than the # of C atoms B) # of H atoms are equal to the # of C atoms C) # of H atoms are greater than the # of C atoms D) I have no clue. Help!

Clicker #3 Which sample contains a greater number of atoms? 10.0 g Cu or 10.0 g Mg A) 10.0 g Cu B) 10.0 g Mg

Clicker #4 Which sample contains a greater number of atoms? 10.0 g Cu or 5.00 g Mg A) 10.0 g Cu B) 5.00 g Mg Note: Did not get to ask in lecture.