Question

A few substances are listed below-

Air / methane/ Silicon/ Acetic

acid /

Milk Hydrogen

a) Which of these can not be broken down into simpler substances?

b) Classify these substances as elements, compounds and mixtures.

c) Differentiate between homogenous and heterogenous mixtures.​

Answer 1

Answer:

a) milk hydrogen

b)elements- hydrogen,silicon;compounds-methane,acetic acid;mixtures-air

c)The difference between heterogeneous and homogeneous mixtures is the degree to which the materials are mixed together and the uniformity of their composition.

Explanation:

c)A homogeneous mixture is a mixture in which the components that make up the mixture are uniformly distributed throughout the mixture. The composition of the mixture is the same throughout. There is only one phase of matter observed in a homogeneous mixture at a time. So, you wouldn't observe both a liquid and a gas or a liquid and a solid in a homogeneous mixture.

There are several examples of homogeneous mixtures encountered in everyday life:

Air

Sugar water

Rainwater

Vodka

Vinegar

Dishwashing detergent

Steel

A heterogeneous mixture is a mixture in which the components of the mixture are not uniform or have localized regions with different properties. Different samples from the mixture are not identical to each other. There are always two or more phases in a heterogeneous mixture, where you can identify a region with properties that are distinct from those of another region, even if they are the same state of matter (e.g., liquid, solid).

Heterogeneous mixtures are more common than homogeneous mixtures. Examples include:

Cereal in milk

Vegetable soup

Pizza

Blood

Gravel

Ice in soda

Salad dressing

Mixed nuts

Bowl of colored candies

Soil.