Question

Classify the following as elements or compounds: (i) Iron (ii)Suphur (iii)Chalk (iv) Washing soda (v) Sodium (vi) Carbon (vii) Iron sulphide 2. Name a metal: (i) which can be easily cut with a knife. (ii)Which forms amalgams (iii) Liquid metal 3. What is the difference between solution and suspension?

Answer 1

Answer:

Explanation:

Elements :- Iron, sulphor , Carbon , Sodium

Compounds :- Chalk, washing soda, iron sulphide

2 (I)

Sulphor is the metal that can be cutted easily from nife

Answer 2

Answer:

here is your answer

Explanation:

1* iron, suphur ,sodium, carbon are elements.

2* chalk, washing soda, iron sulphide are compound.

3*sodium

*mercury alloyed with a number of metals forms amalgams , which is primary used for dental fillings . The common constituents of amalgams are mercury, tin, silver, copper and other trace metal.

*Mercury

4* A solution is a mixture of ions or molecules (very very small) .it is transparent .

whereas suspension has bigger particle size and so it may look cloudy or murky.