Google and it will tell you what the 2 examples are
# of protons + # of neutrons = mass
9 + 10 = 19
the answer is D
Answer:
According to stoichiometry :
2 moles of
produce = 4 moles of
gas and 1 mole of
gas
2 moles of
produce = 5 moles of gas
Thus 0.1 mole of
produce =
of gas
Volume of gas produced =
Thus [tex]5.6dm^3[/tex[ of gas is produced when 0.1 moles of magnesium nitrate is decomposed.
Answer:
Non-spontaneous reaction occurs: electrolytic cell.
Spontaneous reaction occurs: voltaic cell
Oxidation occurs at anode: both
Electrolyte supports electron flow: both
Explanation:
Noble Gas. Metals have 1 or 2 Valence Electrons. Halogens have 7 Valence Electrons. Semi-Metals can have different amounts.