Chemistry Reflection 4

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.