What is element and compound?
What is the difference between
1. Element and Compound.
2. Compound and Mixture.
What are elements and compounds?
What is the difference between elements and compounds
What is the difference between atoms, elements, molecules and compounds?
(a) What is meant by (i) elements (ii) compounds, and (iii) mixtures? Write down the names of two elements, two compounds and two mixtures.
(b) Classify the following into elements, compounds and mixtures :
Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk