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Types of Fire

Which of the ...

Question

Which of the following react(s) with water at normal room temperature?

A

Magnesium

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B

Potassium

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C

Aluminum

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D

Calcium

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Solution

The correct options are
B
Potassium

D
Calcium

Magnesium, aluminum, and zinc react with water at very high temperatures.

Whereas, elements like potassium, sodium and calcium react with water at room temperature.

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Which of the following react(s) with water at normal room temperature?

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Q. What happens when, a) Zinc metal reacts with sodium hydroxide solution. b) Gypsum is heated at 373 K c) Potassium hydroxide reacts with Hydrochloric acid. d) Calcium oxide reacts with water. Write equations for the reactions involved.

Dear Expert,

What will happen when potassium and calcium reacts with hcl? Which gas is evolved ?

Q. Q. Write balanced equations for the following word equations.

1. Potassium chloride + Silver nitrate

\to_{}^{}

potassium nitrate + Silver chloride
2. Alumnium hydroxide + Sodium nitrate

\to_{}^{}

Aluminum nitrate + Sodium hydroxide
3. Iron metal + Copper(II) sulphate

\to_{}^{}

Iron(ii) sulphate + copper metal 4.
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\to_{}^{}

Aluminum chloride + copper metal
5. Potassium bromide

\to_{}^{}

potassium metal + Bromine
6. Calcium carbonate

\to_{}^{}

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7. Zinc metal + Oxygen gas

\to_{}^{}

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\to_{}^{}

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