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uranmaximum [27]
3 years ago
12

5. Which of the following can be classified as a mixture ?

Chemistry
1 answer:
podryga [215]3 years ago
5 0

5. B air is a mixture of many elements, but is not a chemically fused.


6. B Beef stew, composition varies throughout.


7. A. They can be chemically separated into their component elements, but they are all homogenous, and as such, have constant composition, which differs from the components properties, as the components must undergo a chemical change to become compounds.

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List 2 extensive properties and 3 intensive properties of a 5.0g, 1 cm3 cube of silver
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Properties of matter can be broadly classified into two categories:

Physical properties which usually involve a change in the state of matter and Chemical properties which involve a change in the chemical composition of matter.

Now, physical properties can be further classified as:

Extensive: these depend on the amount of the substance, eg: mass, volume  

Intensive: these do not depend on the amount of the substance eg: density, color, melting point, boiling point

Here we are given a 5.0 g and 1 cm3 silver cube :

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1) Mass of silver = 5.0 g

2) Volume of silver = 1 cm3

Intensive properties are:

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2) Melting point of silver = 962 C

3) Color = white/gray

3 0
3 years ago
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