Answer: 15.0 moles of 
are formed from 30.0 mol of 
Explanation:
The balanced chemical reaction is :
According to stoichiometry :
2 moles of give = 1 mole of
Thus 30.0 moles of will give =
of
Thus 15.0 moles of are formed from 30.0 mol of
B. Most species that have lived on earth are now extinct. Ap3x
The low vapor pressure of water preventing bodies of water from dying out.
1mol—44g/mol
0.10mol—x
x=0.10*44
x=4.4 g
7 is neutral on the pH scale
