Question

Identify the pure substances and mixtures:

a) Tin

b) Ice

c) Carbon dioxide

d) Milk​

Answer 1

Answer:

tin (substance)

ice (substance)

carbon dioxide ( mixture)

milk (mixture)

Explantation:

Pure Substances

When we speak of a pure substance, we are speaking of something that contains only one kind of matter. This can either be one single element or one single compound, but every sample of this substance that you examine must contain exactly the same thing with a fixed, definite set of properties.

Mixtures

If we take two or more pure substances and mix them together, we refer to this as a mixture. Mixtures can always be separated again into component pure substances, because bonding among the atoms of the constituent substances does not occur in a mixture.

Answer 2

Answer:

Pure Substance: Tin Ice and carbon dioxide

Mixture:  Milk

Explanation:

Pure Substance:

• Pure substances are those that contain only one type of atom or molecule throughout have a consistent content, and have a stable structure.
• Compounds and elements are unadulterated substances. The only kind of atom that makes up an element is that atom.
• Elements include things like copper metal, silver metal, oxygen gas, etc. While substances created by the blending of two or more elements in a specific ratio are known as compounds,

Pure substance: Tin , Ice and carbon dioxide

• Tin is a chemical element. Tin is a solid at room temperature.
• Carbon dioxide is a compound is made up of two or more separate elements that are chemically combined in a certain ratio.

Mixture:

• Various elements or compounds mixed together, as well as more than one pure component combined in any ratio are called mixtures.
• A mixture's constituent parts lack a fixed ratio and as a result  a fixed composition.
• Physical techniques like evaporation, filtration, etc. can be used to quickly separate their constituent parts.

Mixture: Milk

 Milk is not a pure substance or compound made up of only one kind of atom or molecule However, milk is an abnormally combined mixture of lipids, proteins, sugar, and water.

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