Question 1
Electrolysis of a metal nitrate solution M(NO
3)
2(
aq) for 3.00 hours with a constant current of 20.0 A gives 119 g of the metal M. The identity of the metal M in the metal ion M
2+ is ________.
Question 2
Which statement about nuclear reactions is true?
◦ New elements are never produced in a nuclear reaction.
◦ Tremendous amounts of energy are involved in nuclear reactions.
◦ Nuclear reactions involve valence electrons.
◦ The rate of a nuclear reaction is affected by catalysts.