Question

It's is holiday homework. please tell the answer​

Answer 1

Explanation:

I don't know bhai Mai iska answer nahi de paungq nahi aa raha hai

Answer 2

1.a) Carbon

Atomic number is 6

Distribution of electron is 2,4

1.b) Sodium

No of electrons 11

Distribution of electron is 2,8,1

1.c) Aluminium

No of electrons 13

Distribution of electron is 2,8,3

1.d) Oxygen

No of electrons 8

Distribution of electron is 2,6

1.e) Magnesium

No of electrons 12

Distribution of electron is 2,8,2

2.a) Aluminium Sulphate

$Al_2(SO_4)_3$

2.b) Calcium Chloride

$CaCl_2$

2.c) Potassium Sulphate

$K_2SO_4$

2.d) Potassium Nitrate

$KNO_3$

2.e) Calcium Carbonate

$CaCO_3$

3.)

Examples of Chemical Change

Burning of paper and log of wood

Digestion of food

Boiling an egg

Rusting

Baking a cake

Examples of physical change

Freezing of water

Boiling of water

Melting of wax

Crushing a can

Breaking a glass

4.)

True Solution

Solution of sugar in water

Salt solution

Lemon juice

Suspension

Muddy water

Flour in water

Milk of magnesia

Colloids

Whipped cream

Mayonnaise

Milk