balancing equations no2 - balancing equations made easy
DESCRIPTION
Here is an equation that needs to be balanced: KNO 2 + O 2 KNO 3 KNOKNO Now add up how many K N and O you have on each sideTRANSCRIPT
BALANCING EQUATIONSNO2- Balancing equations made easy
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
Step 1: list all the elements neatly under the arrow
KNO
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 1
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 1
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 11
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 11 1
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 11 1
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 11 13
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
Now add up how many K N and O you have on each side
1 11 13 2 + 2 = 4
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
K and N are fineBUTO is not balanced
1 11 13 4
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
1 11 13 4
We need more O on the left hand side
We only want 1 more O
BUT we can only have 1KNO3, or 2KNO3 or 3KNO3
Here is an equation that needs to be balanced:
KNO2 + O2KNO3
KNO
1 11 13 4
Lets see what happens if we have 2KNO3 on the left
Here is an equation that needs to be balanced:
KNO2 + O22KNO3
KNO
114
Lets see what happens if we have 2KNO3 on the left
Here is an equation that needs to be balanced:
KNO2 + O22KNO3
KNO
114
Lets see what happens if we have 2KNO3 on the left
2
Here is an equation that needs to be balanced:
KNO2 + O22KNO3
KNO
114
Lets see what happens if we have 2KNO3 on the left
22
Here is an equation that needs to be balanced:
KNO2 + O22KNO3
KNO
114
Lets see what happens if we have 2KNO3 on the left
22
2 x 3 = 6
Here is an equation that needs to be balanced:
KNO2 + O22KNO3
KNO
114
Lets see what happens if we have 2KNO3 on the left
226
OK, that looks like we might be able to balance it up on the RIGHT side now
On the RIGHT we now need
1 extra K, 1 extra N and 2 extra O
Can you see how?
Try 2KNO2 on the right:
KNO2 + O22KNO3
KNO
226
2
KNO2 + O22KNO3
KNO
226
2
2
KNO2 + O22KNO3
KNO
226
2
22
KNO2 + O22KNO3
KNO
226
2
22
2 x 2 + 2 = 6
2KNO2 + O22KNO3
KNO
226
226
That is balanced!!!!!