3 years ago

Which of the following are physical properties?

Chemistry

1 answer:

lidiya [134]3 years ago

5 0

Answer:

Explanation:

The properties that are observed or measured without changing the composition of matter are called physical properties.

color, Temperature, Texture are the physical properties as the composition of matter remains the same.

On the other hand, Radioactivity, Flammability and Reactivity comes under chemical property as during the chemical reactions there might be some changes in the properties.

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Answer:

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Explanation:

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3 years ago

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3 years ago

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4 years ago

hat is the pH of a solution with a hydroxide ion concentration of 10–6M? A. pH = 12 B. pH = 8 C. pH = 6 D. pH = 7

WARRIOR [948]

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3 years ago

A manganese electrode was oxidized electrically. If the mass of the electrode decreased by 225 mg during the passage of 1580 cou

qwelly [4]

Answer:

<u>Oxidation state of Mn = +4</u>

Explanation:

Atomic mass of Mn = 55g/mol

From Faraday's law of electrolysis,

Electrochemical equivalent = $\frac{mass}{charge}$

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But Equivalent weight, E = atomic mass ÷ valency = Z × 96,485

⇒ $\frac{55}{valency}$ = 0.0001424 × 96,485

<u>∴ Valency of Mn = +4</u>

8 0

3 years ago