[MissDee]

Hi,

I have to write a balanced equation between stomach acid and an antacid. The antacid I'm using consists of Aluminum Hydroxide and Magnesium Hydroxide.

So far, I have:

3HCl + Al(OH)₃  AlCl₃ + 3H₂O
2HCl + MgCl₂  MgCl₂ + H₂O

Did I write and balance these equations correctly? I have a feeling I wrote the equation on the left for Magnesium Hydroxide incorrectly. Please let me know, thanks!

[Borek]

2HCl + MgCl₂

This is not hydrochloric acid mixed with magnesium hydroxide.

[MissDee]

2HCl + MgCl₂

This is not hydrochloric acid mixed with magnesium hydroxide.

Is it...:

2HCl + MgOH₂  MgCl₂ + H₂O ?

[Borek]

Better, but still wrong. This time mistake is so obvious, you will hate yourself once you will find out what you did

You have still problems with magnesium hydroxide.

[MissDee]

Better, but still wrong. This time mistake is so obvious, you will hate yourself once you will find out what you did

You have still problems with magnesium hydroxide.

Hmmm... do the parenthesis matter? Also, did I forget the 2 in front of H₂O?

2HCl + Mg(OH)₂  MgCl₂ + 2H₂O ?

[Borek]

do the parenthesis matter?

You are not sure? I should pretend I am fainting

Yes, they do.

MgOH₂ means one atom of Mg, one of O and two of H.

Mg(OH)₂ means one atom of Mg, two of O and two of H.

2HCl + Mg(OH)₂  MgCl₂ + 2H₂O ?

OK.

[MissDee]

You are not sure? I should pretend I am fainting

Yes, they do.

MgOH₂ means one atom of Mg, one of O and two of H.

Mg(OH)₂ means one atom of Mg, two of O and two of H.

  I think I'm not with it today. Thanks for all your *delete me*