Balancing Equations Flashcards
According to what are there specific rules ?
International Union of Pure and Applied Chemistry
What does balancing involve?
Reactants and products
Define equations
Symbolic representation of chemical reactions
What law must we consider when balancing?
Law of Conservation of Mass
Define the Law of Conservation of Mass
The total mass of substances taking part in a chemical reaction is conserved during the reaction
In short terms what is the Law of Conservation of Mass?
Mass cannot be created or destroyed
What must the atoms of reactants and atoms of products do?
They equal meaning balance
What are subscripts?
How many atoms of elements present in compounds
What size are subscripts?
Small fonts
Where is the subscript placed?
Directly after atom
What is important to remember when writing subscripts?
It cannot be changed
Diatomic elements
What are coefficients?
How many molecules of reactants and products present
What size are coefficients?
Full size
Where is the coefficients placed?
In front of reactant or product
What is important to remember when writing coefficients?
It applies to the entire element or molecule. Affects first and second element
What do we put between the reactant and product?
The yield sign
What is the yield sign?
An arrow. NEVER an equal sign.
It means to produce
What do you represent coefficients with when balancing?
A block
What does the more atoms mean?
The bigger atomic number
What is important to remember when drawing particle diagrams?
Key and using the same atom patterns
When balancing which side do we start on?
Products
What is important to remember when balancing word equations?
Always swop and drop with the products
What does prove the periodic table makes use of the Law of Conservation of Mass mean?
At the end of balancing, multiply the final numbers by their atomic number. Add the final results and check if both sides are equal
