5 Questions
What is the most fundamental unit of matter?
Atoms
What is the size of an atom?
0.1 to 0.5 nanometers
What is the law that states the elements are present in chemical compounds in a predetermined mass ratio?
Law of Constant Proportions
What are responsible for forming tiny sand particles, gargantuan black holes, and everything in between?
Atoms
What is the oxygen and hydrogen content in pure water an example of?
Law of Constant Proportions
Test your knowledge of atoms and molecules with this quiz covering the highlights of Chapter 3 from the Class 9 Science Notes. Explore concepts such as atomic structure, chemical reactions, and more.
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