Reflection about Moles

Moles are massive numbers, they are equal to 0.012 kg of carbon-12. Moles are the unit of a substance. There are formulas used in moles. Molar mass are also related to moles as they are also part of the formula. Molar mass has the same numercial value as the Ar or Mr.

The formulas are:

"Simple Balanced Equations" Reflection

L.O: Construct a word equation and simple balanced equations

I learned how to balance equations in chemistry. It's a bit difficult at first, since I keep on getting confused what number should I put to balance the equation, because when I put  like a certain number I might get it wrong, when I see the result as not balanced.

Example:

2   AgI   +  Na2S  ----> Ag2S + 2 NaI

Ba3N2   +  6H20 -----> 3 Ba(OH)2   + 2NH3

Well, in the end I learned a trick of how to do it quick though, I learned how to balance the equation and that is by looking at the numbers that I put in each element.