Question

give 2 examples of :-
Acid + Metal -> salt + Hydrogen gas

Metal carnonate /metal hydrogen carbonate+ Acid -› Salt + Carbon
dioxide + Water

Acid + Base -› Salt + Water

Metal oxide + Acid -› Salt + Water


please it's urgent​

Answer 1

Answer:

Answer

Correct option is

A

Carbon dioxide, Water

Acid + Metal carbonate ⟶ Salt + Water + Carbon dioxide.

Thus, the gas is carbon dioxide and the product is water, option A is correct.

Example-

CaCO

3

(calcium carbonate-metal carbonate) + 2HCl ⟶ CaCl

2

(calcium chloride-salt) + H

2

O + CO

2

Answer 2

Answer:

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Explanation:

Reactions of acids with metals

Acids react with mos

t metals and, when they do, a salt is produced. ...

This is the general word equation for the reaction:

For example, magnesium reacts with hydrochloric acid to produce magnesium chloride:

magnesium + hydrochloric acid → magnesium chloride + hydrogen