magnesium oxide reaction


by chawki
Tags: magnesium, oxide, reaction
chawki
chawki is offline
#1
Feb21-11, 01:05 PM
P: 510
1. The problem statement, all variables and given/known data
When acid and metal oxide react the product is salt and water.

2. Relevant equations
Write the reaction formula, when hydrochloric acid reacts with magnesium oxide

3. The attempt at a solution
Hcl and MgO
2 Hcl + MgO ------> 2H2O+ MgCl
I still find it not balanced and dunno how balance it
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zhermes
zhermes is offline
#2
Feb21-11, 08:11 PM
P: 1,262
How do you balance reaction equations in general?
willem2
willem2 is offline
#3
Feb21-11, 08:23 PM
P: 1,352
Quote Quote by chawki View Post
1. The problem statement, all variables and given/known data
When acid and metal oxide react the product is salt and water.

2. Relevant equations
Write the reaction formula, when hydrochloric acid reacts with magnesium oxide

3. The attempt at a solution
Hcl and MgO
2 Hcl + MgO ------> 2H2O+ MgCl
I still find it not balanced and dunno how balance it
It's [itex] MgCl_2 [/itex]

dextercioby
dextercioby is offline
#4
Feb22-11, 04:17 AM
Sci Advisor
HW Helper
P: 11,866

magnesium oxide reaction


Advice: before wondering how the atoms in a reaction can be balanced, you need to write all the formulas correctly.

Magnesium is divalent (you can see that in the monoxide, it has the same valence as the oxygen, 2) and this is a simple reaction, it will not get reduced, so in the salt it must have the same valence, namely 2.
chawki
chawki is offline
#5
Feb22-11, 04:51 AM
P: 510
2HCl + MgO -----> H2O + MgCl2
dextercioby
dextercioby is offline
#6
Feb22-11, 05:03 AM
Sci Advisor
HW Helper
P: 11,866
That's more like it.


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