Subscripts  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

Posts: 30
Joined: Fri Apr 06, 2018 11:04 am


Postby ZachMoore1C » Fri Apr 06, 2018 2:11 pm

What are you supposed to do when the equation you're balancing has something like Mg(N3)2?

Posts: 17238
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 367 times

Re: Subscripts  [ENDORSED]

Postby Chem_Mod » Fri Apr 06, 2018 2:14 pm

This would mean that the nitrogen has 6 atoms (two groups of N3) and you will balance it as such! Hope that helps.

Mei Blundell_1J
Posts: 32
Joined: Fri Apr 06, 2018 11:01 am
Been upvoted: 1 time

Re: Subscripts

Postby Mei Blundell_1J » Fri Apr 06, 2018 4:56 pm

Remember that subscripts indicate that the atoms are bonded to form a molecule while coefficients just count the molecules. For example, 6C4 represents 6 molecules (or moles) of C4.

Bree Perkins 1E
Posts: 34
Joined: Fri Apr 06, 2018 11:04 am

Re: Subscripts

Postby Bree Perkins 1E » Sat Apr 07, 2018 2:28 pm

The 2 outside the parentheses can be multiplied by the three inside which tells you that you have 6 Nitrogens right there. That being said, you now just need to make sure that the other side has the same amount, which you can do by balancing the rest!

Posts: 32
Joined: Fri Apr 06, 2018 11:02 am
Been upvoted: 1 time

Re: Subscripts

Postby YeseniaGomez_1L » Tue Apr 10, 2018 8:21 pm

The way I see it is as a normal math problem. In math when you have a number multiplying by the stuff in parenthesis you are supposed to distribute. Similarly when you have something like Mg(N3)2, you could see it in this way and distribute the 2, in other words you would multiply the number inside the parenthesis by 2. This would give you N6.

Erin Li 1K
Posts: 30
Joined: Fri Apr 06, 2018 11:03 am

Re: Subscripts

Postby Erin Li 1K » Wed Apr 11, 2018 12:16 am

This means that there are 6N and and only 1 Mn. You would have to take into consideration both elements when balancing the equations. You would generally balance the one that is by itself on the other side last or balance the one first that is easiest to balance corresponding to the other side.

Posts: 20
Joined: Wed Nov 15, 2017 3:00 am

Re: Subscripts

Postby CarinaVargas1J » Sun Apr 15, 2018 11:46 pm

It will become Mg(N6). Then you are able to balance the rest of the equation.

Return to “Balancing Chemical Reactions”

Who is online

Users browsing this forum: No registered users and 1 guest