First of all, we need tô calculate moles of KCl
next, mass=mol×molar mass
Answer:
As per the general rule for finding oxidation number, When H is bonded with non-metal it has oxidation number as 1. As in the given ion, hydrogen is bonded with non-metal oxygen and there are three hydrogen atom, the oxidation number of hydrogen atom is 3.
<u>Answer:</u>
NO ---> N +2 and O -2
<u>Explanation:</u>
Oxidation numbers are assigned to the elements of a compound to keep a track of the number of electrons each atom has.
Here we have a compound NO (Nitrogen Oxide). The Nitrogen is assigned an oxidation number of +2 while Oxygen in this compound is assigned an oxidation number of -2.
So the algebraic sum of the oxidation numbers of the elements in the compound NO is equal to zero.
Answer:
rust
Explanation:
Chemical rxn of iron and oxygen = rust
