Fundamental H5 D

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Michelle Shin 4B
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Fundamental H5 D

Postby Michelle Shin 4B » Wed Oct 02, 2019 10:13 pm

To balance Fe2P (s) + S(s) -> P4S10 (s) + FeS(s), how do you know which element to start balancing first?

Tai Metzger 3K
Posts: 103
Joined: Sat Aug 24, 2019 12:17 am

Re: Fundamental H5 D

Postby Tai Metzger 3K » Wed Oct 02, 2019 10:15 pm

Generally, it is easiest to start with the element that appears only once on each side of the equation and then move on to the more complex elements. In this case, I recommend starting with Fe.

Posts: 100
Joined: Wed Sep 18, 2019 12:15 am

Re: Fundamental H5 D

Postby MinuChoi » Wed Oct 02, 2019 10:18 pm

You can save balancing S for last, since it appears several times on one half of the equation.
And since S is its own particle on the reactants side, balancing S will be really easy once the Fe and P are balanced out.

Aadil Rehan 1D
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Joined: Thu Jul 11, 2019 12:16 am
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Re: Fundamental H5 D

Postby Aadil Rehan 1D » Wed Oct 02, 2019 11:53 pm

I usually start by looking for the minimum coefficient that something has to be multiplied by - for example, since there's 4 phosphorus atoms on the right side, I know that Fe2P has to have a coefficient of at least 4. It can be reverse-solved from there, usually.

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