Acid-Base Reaction: Hydrochloric Acid and Magnesium Oxide Formula

In summary, the reaction between hydrochloric acid and magnesium oxide produces water and magnesium chloride. The balanced reaction formula is 2HCl + MgO -----> H2O + MgCl2. It is important to ensure that all formulas are written correctly before balancing the reaction.
  • #1
chawki
506
0

Homework Statement


When acid and metal oxide react the product is salt and water.

Homework Equations


Write the reaction formula, when hydrochloric acid reacts with magnesium oxide

The Attempt at a Solution


Hcl and MgO
2 Hcl + MgO ------> 2H2O+ MgCl
I still find it not balanced and don't know how balance it
 
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  • #2
How do you balance reaction equations in general?
 
  • #3
chawki said:

Homework Statement


When acid and metal oxide react the product is salt and water.

Homework Equations


Write the reaction formula, when hydrochloric acid reacts with magnesium oxide

The Attempt at a Solution


Hcl and MgO
2 Hcl + MgO ------> 2H2O+ MgCl
I still find it not balanced and don't know how balance it

It's [itex] MgCl_2 [/itex]
 
  • #4
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.
 
  • #5
2HCl + MgO -----> H2O + MgCl2
 
  • #6
That's more like it.
 

1. What is the chemical equation for the reaction between magnesium and oxygen to form magnesium oxide?

The chemical equation for this reaction is:
2Mg + O2 → 2MgO

2. What is the physical appearance of magnesium oxide?

Magnesium oxide is a white, odorless solid with a powdery texture.

3. What is the purpose of this reaction?

This reaction is important in the production of magnesium oxide, which is used in a variety of industries including medicine, agriculture, and construction. It is also used as a dietary supplement due to its high magnesium content.

4. What are the conditions necessary for this reaction to occur?

This reaction occurs when magnesium metal is heated in the presence of oxygen, typically at high temperatures. It can also occur in the presence of water vapor at lower temperatures.

5. Is this reaction exothermic or endothermic?

This reaction is exothermic, meaning it releases heat. This can be observed by the bright white light and high temperatures produced when magnesium reacts with oxygen.

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