To find out if you have understood the important concepts of the lesson, answer the following questions below.
1. which liquid sample is a pure subtance?
table 1: boiling point of two liquid samples
sample temperature observation while heating
Liquid A
Liquid B
2. which solid sample is a pure subtance?
scenario 1: melting point of two solid samples
sample:Appearance:observation while melting
Solid A
Solid B
1. which liquid sample is a pure subtance?
table 1: boiling point of two liquid samples
sample temperature observation while heating
Liquid A
Liquid B
2. which solid sample is a pure subtance?
scenario 1: melting point of two solid samples
sample:Appearance:observation while melting
Solid A
Solid B
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Answers & Comments
1.Liquid, fluid agree in referring to matter that is not solid. Liquid commonly refers to substances, as water, oil, alcohol, and the like, that are neither solids nor gases: Water ceases to be a liquid when it is frozen or turned to steam.
2.Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements.
Explanation:
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