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snow_tiger [21]
3 years ago
15

A substance is composed of only one kind of atom and can't be separated into simpler substances or converted into another substa

nce by chemical processes.
Under which category would you classify this substance?
A) element
B) compound
C) solution
D) suspension
Chemistry
1 answer:
mr Goodwill [35]3 years ago
5 0

<span>The correct answer among the choices given is option A. Elements are distinguished from compounds. An element is a pure chemical substance which is from a same atom while compounds are from different elements. It contains atoms of different elements.</span>

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Answer:

(1). The vapor pressure is 91 mmHg at 20°C.

(2). No, benzene will not boil at sea level.

Explanation:

Benzene, C6H6 is an aromatic, liquid compound with with molar mass of 78.11 g/mol and Melting point of 5.5 °C. One of the importance or the uses of benzene is in the making of fibres and plastics.

The vapour pressure of benzene can be gotten from the table showing the vapor pressure of different liquids.

Boiling point can simply be defined as the point or the temperature in which the vapor pressure is the same with the atmospheric pressure.

The atmospheric pressure is 760mmHg, while the vapor pressure at sea level is at the temperature of 15°C which is equal to 71 mmHg( from the table showing the vapor pressure of different liquids).

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Given

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