2NH3 + H2O2 → N2H4 + 2H2O
It started at 18 degrees and increased to 24 degrees.
24 - 18 is 6
So there was a 6 degree increase in temperature.
Answer: The ions which are not spectator ions are
and
Explanation:
Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.
The given chemical equation is:
The ions which are present on both the sides of the equation are
and
and are spectator ions.
Thus the net ionic equation is:

Hence, the correct answer is
and
Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance