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Chemical Compounds Quiz

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Questions and Answers

What is the molecular structure of ammonia?

Three nitrogen and one hydrogen atom
One nitrogen and two hydrogen atoms
One nitrogen and three hydrogen atoms (correct)
Two nitrogen and three hydrogen atoms

What is the primary function of a battery?

To store nuclear energy and convert it to electrical energy
To store thermal energy and convert it to electrical energy
To store chemical energy and convert it to electrical energy (correct)
To store mechanical energy and convert it to electrical energy

Which of the following compounds is characterized by a hydroxyl group attached to a carbon atom of an aromatic ring?

Phenol (correct)
Alcohol Ethoxylate
Ethanol
Ammonia

What is the primary use of Phenol Quats?

To disinfect surfaces like countertops and floors (B) Signup and view all the answers

Which compound releases hydrogen peroxide and is used for scrubbing stains off dishes?

Sodium Percarbonate (D) Signup and view all the answers

According to the collision theory, which of the following is a requirement for a chemical reaction to occur?

The particles must collide with a specific orientation. (B) Signup and view all the answers

What is the term used to describe the substances formed as a result of a chemical reaction?

Products (A) Signup and view all the answers

Which of the following statements is true about the rate of chemical reactions?

The rate of a reaction is measured by the increase in concentration of products. (C) Signup and view all the answers

What is the key characteristic that distinguishes a chemical change from a physical change?

A chemical change involves the formation of new substances. (B) Signup and view all the answers

According to the information provided, which of the following statements is true about chemical reactions?

Chemical reactions can only be reversed by chemical reactions. (D) Signup and view all the answers