Name: Physical and Chemical Changes Explained
Uploaded: 2019-07-19
Duration: 5 min 35 s
Description: Millions of changes happen around us. These changes can be physical changes or chemical changes. Do you know the difference between them? Learn how to distin...

Question

Classify the following into elements, compounds and mixtures.

(a) Sodium
(a) Soil
(c) Sugar solution
(d) Silver
(e) Calcium carbonate
(f) Tin
(g) Silicon
(h) Coal
(i) Air
(j) Soap
(k) Methane
(l) Carbon dioxide
(m) Blood

Accepted Answer

Elements: Sodium, silver, tin and silicon are elements as they are basic forms of matter that cannot be broken down into simpler substances through chemical reactions. Elements are made up of only one kind of atoms.

Compounds: Calcium carbonate, methane and carbon dioxide are compounds, as they are composed of two or more elements that are chemically combined with one another in a fixed proportion.

Mixtures: Soil, sugar solution, coal, soap, air and blood are mixtures as they are made of more than one kind of pure matter. This is merely a physical combination of two or more substances. The individual components are not chemically combined.

Classify the following into elements, compounds and mixtures.

(a) Sodium
(a) Soil
(c) Sugar solution
(d) Silver
(e) Calcium carbonate
(f) Tin
(g) Silicon
(h) Coal
(i) Air
(j) Soap
(k) Methane
(l) Carbon dioxide
(m) Blood

Important Questions on Is Matter Around Us Pure?

Learn and Prepare for any exam you want !

Classify the following into elements, compounds and mixtures. (a) Sodium (a) Soil (c) Sugar solution (d) Silver (e) Calcium carbonate (f) Tin (g) Silicon (h) Coal (i) Air (j) Soap (k) Methane (l) Carbon dioxide (m) Blood

Important Questions on Is Matter Around Us Pure?

Learn and Prepare for any exam you want !

Classify the following into elements, compounds and mixtures.

(a) Sodium
(a) Soil
(c) Sugar solution
(d) Silver
(e) Calcium carbonate
(f) Tin
(g) Silicon
(h) Coal
(i) Air
(j) Soap
(k) Methane
(l) Carbon dioxide
(m) Blood