Question 1
For the following transformation, how many hydrogen atoms are added or lost?
◦ one hydrogen atom added
◦ two hydrogen atoms added
◦ one hydrogen atom lost
◦ two hydrogen atoms lost
◦ no change in the number of hydrogen atoms
Question 2
For the following equation, how many hydrogen atoms are added or lost?
◦ one hydrogen atom added
◦ two hydrogen atoms added
◦ one hydrogen atom lost
◦ two hydrogen atoms lost
◦ no change in the number of hydrogen atoms