Mixture | Study Guide

University:
Widener University
Course:
CHEM-101 | Intro to Chemistry I
Academic year:

2020
Views:

428

Pages:

1
Author:

catfever701r

Mixture A substance which is made of two or more kinds of particles (molecules) of different substances in such a way that the particles can be separated by physical means is called a mixture. Examples: • A glass of neembu-pani is a mixture of water, sugar and citric acid. • Smoke is a mixture of carbon particles and air. • Sea water is a mixture of water and a large number of salts of metals. • Air is a mixture of oxygen, nitrogen, carbon dioxide and water vapour. • Vinegar is a mixture of acetic acid and water. The tea is been separated from the mixture of tea and tea leaves with the help of a strainer. The tea leaves are the impurities which are not required after the tea is made. The other examples from our day to day life are churning of milk to obtain butter and removing stones from grains. Separation of tea leaves We separate some substances from a mixture because they act as impurities or become harmful or useless. Like the tea leaves become useless after the tea is made. If the stones are not removed from the grains they become harmful to us when consumed with grains. When we churn milk for butter, both remain useful.