COPY: Chemistry Basics Quiz

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

They are composed of continuous substance that cannot be divided.

They are composed of indivisible and invisible particles called atoms. (correct)

They are composed of various elements that can be separated easily.

They are composed of visible particles called molecules.

Why is a basic understanding of chemistry important for many subjects such as biology?

To know the different chemical reactions occurring in the human body.

To identify the elements present in nonliving things.

To understand the composition of matter in living organisms. (correct)

To analyze the physical properties of living organisms.

What is matter?

Energy present in all living and nonliving things.

The physical form of elements found in nature.

Substances that are visible to the naked eye.

Anything that has weight and occupies space. (correct)

Why does intuition suggest that all substances are made of minute particles?

Due to observations such as evaporation, erosion, and growth of living things. Signup and view all the answers

What is the modern particulate nature of matter based on?

The idea that matter is composed of indivisible particles called atoms. Signup and view all the answers

According to John Dalton's atomic theory, what is the nature of atoms?

Atoms are made up of indivisible particles Signup and view all the answers

Which phenomenon is characterized by the 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 identified the negatively charged electron in the cathode ray tube and deduced its properties?

J.J. Thomson Signup and view all the answers

What is the constant erratic or non-directional movement of tiny particles suspended in a medium known as?

Brownian motion Signup and view all the answers

According to J.J. Thomson's observations, how did the rays in the cathode ray tube behave?

Rays were deflected by an electrostatic field towards the negative plate Signup and view all the answers

COPY: Chemistry Basics Quiz

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Questions and Answers

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

Why is a basic understanding of chemistry important for many subjects such as biology?

What is matter?

Why does intuition suggest that all substances are made of minute particles?

What is the modern particulate nature of matter based on?

According to John Dalton's atomic theory, what is the nature of atoms?

Which phenomenon is characterized by the flow of matter from a region of lower concentration to a region of higher concentration through a semi-permeable membrane?

Who identified the negatively charged electron in the cathode ray tube and deduced its properties?

What is the constant erratic or non-directional movement of tiny particles suspended in a medium known as?

According to J.J. Thomson's observations, how did the rays in the cathode ray tube behave?

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