C3.1.4 - Chemical Equations Flashcards
(4 cards)
1
Q
What is a word equation?
A
A simple model for a chemical reaction which shows the names of the reactants and products involved
2
Q
Why is a balanced equation better than a word equation?
A
It shows how the atoms are arranged in the reaction and the relative amounts of the substances involved
3
Q
How do you balance an equation?
A
The number of atoms of each element on each side of the arrow must be the same
4
Q
What do state symbols show?
A
The physical state of each substance in a chemical reaction
