10 Questions
What did Leucippus and Democritus infer about all living and inanimate things?
They are composed of indivisible and invisible particles called atoms.
Why is a basic understanding of chemistry important for many subjects such as biology?
To understand the composition of matter in living organisms.
What is matter?
Anything that has weight and occupies space.
Why does intuition suggest that all substances are made of minute particles?
Due to observations such as evaporation, erosion, and growth of living things.
What is the modern particulate nature of matter based on?
The idea that matter is composed of indivisible particles called atoms.
According to John Dalton's atomic theory, what is the nature of atoms?
Atoms are made up of indivisible particles
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
Who identified the negatively charged electron in the cathode ray tube and deduced its properties?
J.J. Thomson
What is the constant erratic or non-directional movement of tiny particles suspended in a medium known as?
Brownian motion
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
Test your knowledge of basic chemistry concepts including matter, the particulate nature of matter, and its applications in fields such as health, medicine, environment, food, and technology.
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