Amounts of Substance - Chemical Equations (don’t understand) Flashcards
1
Q
What happens during a chemical reaction?
A
No atoms are created or destroyed
They are rearranged
2
Q
Species in equations
What is meant my species?
A
The type of particle that is taking part in the reaction
3
Q
How do we know which state it is in?
A
By the state symbols
4
Q
What are the state symbols?
4
A
s - solid
l - liquid
g - gaseous
aq- aqueous
(All in brackets in equations)
5
Q
What do the state symbols tell us?
A
What physical state the species is in
6
Q
How do we balance ionic equations?
A
Write out the balanced equation
Re-write equation to show which components dissociate into ions
Cancel out any spectator ions to produce the net ionic equation
