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What is an atom?
An atom is the smallest unit of matter that retains the properties of an element.
What are chemical bonds?
Chemical bonds are the forces that hold atoms together in a compound.
What is the pH scale?
The pH scale measures the acidity or basicity of a solution, ranging from 0 to 14.
What is a mole?
A mole is a unit in chemistry that represents 6.022 x 10^23 particles of a substance.
What is an isotope?
An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.