Verified answer

One of the simplest reactions learnt in chemistry is

ACID + BASE = SALT + WATER

The acid H2SO4 is neutralizing the base Mg(OH)2 here.

H2SO4 + Mg(OH)2 → MgSO4 + 2 H2O

Your teacher should be teaching you these basic general equations like this! Others include

ACID + METAL = SALT + HYDROGEN

ACID + CARBONATE = SALT + WATER + CARBON DIOXIDE

H2SO4 + Mg(OH)2 → MgSO4 + 2 H2O

acid + base is a displacement reaction, displace H by Mg

H2SO4+ Mg(OH)2 -> MgSO4 + 2H2O

this is a neutralization reaction as it is a reaction between an acid and a base.

H2SO4 + Mg(OH)2 → MgSO4 + 2H20

You asking why?

Try check ion form for each component

from H2SO4

consist of

2 H+ and 1 SO42-

from Mg(OH)2

consist of

1 Mg2+ and 2 OH-

Then, react both component by mixing positive with negative charge

we take 2 H+ (from H2SO4) react with 2 OH- (from Mg(OH)2)

Q: why i take hydrogen ion H+ and react it with OH- ?

A: as i said positive react with negative from other molecule.

so, 2 hydrogen ion react with 2 hydroxide ion you will get 2 water molecule.

Same thing for MgSO4

Blue.

MgSO4 + H2O