Identify the true statements below. The reaction of an exploding firework occurs at a faster rate than a burning candle.

The activation energy required for an exploding firework is less than the activation energy required for a burning candle.

In the explanation

Explanation:

The first statement is correct since the gun explosive powder explodes since they light a fuse at first, and once the fuse reaches the end it explodes as a reaction. However, for a candle it relies on the lit fire. Wax is a tough and a longer substance to melt compared to a exploding firework.

For the activation energy for the firework, it uses that energy in a result of the fuse reaching the end and reacting with the gun powder.

The ansseer is Iridium.

The atomic number of iridium is 77 and it comes just before platinum (atomic number = 78).

In iridium,

The number of electrons = no. Of protons = 77.
The no. Of electrons and the no. Of protons is same as atomic number.