How to learn about the subject of thermodynamics as applied to chemical reactions
Define the term " thermodynamics ".
Thermodynamics is a science which is built upon experimental facts that cannot be proven. But no one has so far succeeded to refute these principles.

There are two experimental facts upon which thermodynamics is built. These are: the law of conservation of energy upon which the first law of thermodynamics is built.

A woman is wearing a white robe and a black belt. she

does karate moves in her room.

The fencer then demonstrates and gives the man a lesson in fencing. He shows the man the various skills involved in fencing. the man

is able to miss and evade every move of the fencer as he goes untouched by the sword.

How to learn multiplication facts
Learn one table at a time.
Select one multiplication table to learn at a time. Start with the simple tables such as 2s , 10s , 5s, and 11s.
By the time you learn the more difficult tables such as the 7s and 8s, you will already know several facts. Remember , 1 x 4 is the same as 4 x 1 so you only have to learn half of the multiplication table because the other half is just written the other way.