Question

Show that the chemical reaction in which magnesium bums with a dazzling white light to form magnesium oxide is in accordance with law of conversation of mass(Mg=24,O=16)​

Answer 1

Answer:

Explanation:

Mg + O2 => MgO2

no of atoms of Mg and O are same

Answer 2

Answer:

hey , your answer is 80g.

Explanation:

2Mg + O ----- > 2MgO

²

here,

Mg = 24 ; O = 16

Mg = 24 ; O = 16 2Mg + O2 = 2MgO

If Mg is 24 and O2 is 16 then the ratio of equivalent 1 : 1

=Mg = 2 × 24 + 16 × 2

= 48 +32

= 80

✡hence , 80g✡

✡verification:✡

⭕Total mass on LHS

=( 24 × 2 ) + ( 16 × 2 )

= 48 + 32

= 80g

⭕Total mass on RHS

= 2( 24 + 16)

= 48 + 32

= 80g

so, L.H.S = R.H.S

hence,

⭐verified⭐

______________________________

✡NOTE✡

• types of chemical reactions combination

1. deposition
2. displacement
3. double displacement
4. redox reaction.

• Some symbols of elements

elements symbols

1. Magnesium = Mg
2. Oxygen = O
3. Sulphur =. S
4. Potassium = P
5. Sodium = Na
6. Chlorine = Cl
7. Hydrogen = H
8. Nitrogen = N
9. Carbon = C
10. Iron = Fe