Write a balanced equation for the following by inserting the correct coefficients.

KOH (aq) + Al (NO3) 3 (aq) - -->Al (OH) 3 (s) + KNO3 (aq)

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In order to write a balanced equation, all you have to do is look at your atoms on each side and make sure there are the same amount present on either side.

K 1 | K 1

OH 1 | OH 3

Al 1 | Al 1

NO3 3 | NO3 1

So what you would need to do is add a coefficient in front of each compound to make sure there is the same amounts on either side. Your equation should look like this at the end:

3KOH (aq) + Al (NO3) 3 (aq) - -> Al (OH) 3 (s) + 3KNO3 (aq)

Make sure that when you are balancing you keep the polyatomic ions together.