
Molecular Formulas and Subscripts
Presentation
•
Science
•
8th Grade
•
Hard
Joseph Anderson
FREE Resource
7 Slides • 4 Questions
1
Subscripts, Coefficients and Counting Atoms
UNDERSTANDING HOW TO READ CHEMICAL EQUATIONS
2
3
Coefficient
Parentheses
Element Symbol
Subscript
4
Parts of Chemical Equation/Formula
There are 3 parts to a chemical formula
Elements
Coefficients
Subscripts
Parentheses
5
Subscripts-tells us the number of atoms of each element in the molecule.
6
Coefficient- Tells us the number of molecules that are present.
7
Parentheses- the subscript to the right of the parentheses is only distributed to the elements inside.
8
Multiple Choice
The following tells us the number of molecules that are present in an equation.
coefficient
subscripts
elements
9
Open Ended
Indentify the following Elements in the chemical equation. (You only have to put the symbol if you do not know the name).
10
Multiple Choice
What does the following represent?
coefficient
subscript
elements
11
Multiple Choice
What does the number 3 represent in 4NH3?
Subscript
Superscript
Coefficient
Subscripts, Coefficients and Counting Atoms
UNDERSTANDING HOW TO READ CHEMICAL EQUATIONS
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