Question

What is meant by a) Elements b) Compound c) Mixture
Write down the names of two elements, two compounds and two mixtures.​

Answer 1

Answer:

Element:

Elements are made of only one kind of atoms, (if we ignore isotopic differences). Since there is only one kind of atom, any sample of an element is homogeneous. Elements can not be broken down into simpler substances.

eg. Hydrogen(H), Oxygen(O).

Compound:

Compounds consist of two or more kinds of atoms, in a fixed ratio defined by nature, with a specific, unique set of properties. Compounds are also homogeneous. Compounds, with the appropriate methods, can be broken down into simpler substances.

eg. Water(H²O), Methane(CH⁴).

Mixture:

A mixture contains subtances, elements and or compounds, in a proportion not defined by nature and has properties based on the relative concentration of the components. If a mixture is homogeneous, it is a solution. There is no special name for heterogeneous mixtures.

eg. Brass(Cu+Zn), Bronze(Cu+Sn).