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Chemistry: Matter and its Study

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Questions and Answers

What is chemistry?

The study of outer space

The study of living organisms

The study of matter and the changes it undergoes (correct)

The study of computer science

Why is a basic understanding of chemistry important for subjects like biology?

To explore the ocean ecosystems

To understand the behavior of animals

To study the solar system

To comprehend chemical reactions within living organisms (correct)

What did Leucippus and Democritus infer about all living and inanimate things?

That everything is made of water

That everything is composed of indivisible and invisible particles called atoms (correct)

That everything is made of air

That everything is made of energy

What is matter?

Anything that has weight and can occupy space Signup and view all the answers

Why does chemistry affect all aspects of life?

Because everything in the universe is made of matter Signup and view all the answers

What is the process of the movement or flow of matter from a region of lower concentration to a region of higher concentration through a semi-permeable membrane?

Osmosis Signup and view all the answers

Who discovered the phenomenon of Brownian motion?

Robert Brown Signup and view all the answers

According to John Dalton's Atomic Theory, what is the nature of matter?

Matter is made up of indivisible atoms Signup and view all the answers

Who identified the negatively charged electron in the cathode ray tube in 1897?

J.J. Thomson Signup and view all the answers

Which scientist observed that rays emerged at right angles from the cathode and traveled in a straight line, and were deflected by an electrostatic field away from the negative plate?