Today we learned about
balancing equations. Balancing equations is when there is a chemical equation
but the elements in the equation are not equal so we need to balance them. An example is :
AgI+Na2S=Ag2S+NaI
The elements are not
balanced because there are 2 sodium in the first one and only 1 in the second
one. We fix it by multiplying the second one by 2. Also, there are 2 silver in
the second one while only one in the first one so we multiply the first one by
2 to make this.
2AgI+Na2S=Ag2S+2NaI
It is kinda difficult
because sometimes we get the numbers wrong and we need to try again. The
easiest way to do it is to change the number of the lone element first. So if
there is an element that is not mixed with another element, change it first so
it is easier.
