The force of attraction that the earth exerts on all objects is called

The force of attraction that the earth exerts on all objects is called gravitational force. The gravitational force is the force that has the property of attracting any object having a mass. Without this gravitational force it would not have been possible for anything to remain on earth. Everything would start floating without the gravitational pull of earth. There are actually four kind of forces that are considered in physics. They are the strong force, weak force, gravitational force and the electromagnetic force. It is absolutely true that every object is pulling other objects due to the forces present in nature.

Answer :

(a) The name of gas given off in the reaction is hydrogen gas.

(b) When we take the test tube containing zinc and sulfuric acid near a candle or a burner, we hear a pop sound. This shows the presence of hydrogen gas.

(c) The products formed in this reaction are zinc sulfate and hydrogen gas.

(d) When the evolution of hydrogen gas will stop.

(e) The word equation for this reaction is:

Zinc + Sulfuric acid Zinc sulfate +Hydrogen gas

Explanation:

As we know that when an acid reacts with a metal, then a salt and hydrogen gas are formed.

As per question, when sulfuric acid reacts with zinc metal then zinc sulfate and hydrogen gas are formed.

The word equation for this reaction is:

Zinc + Sulfuric acid Zinc sulfate +Hydrogen gas

The balanced chemical reaction is as follows:

In this reaction, zinc metal displaces the hydrogen form sulfuric acid.

When we take the test tube containing zinc and sulfuric acid near a candle or a burner, we hear a pop sound. This shows the presence of hydrogen gas.