EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water is a compound H20. What are its smallest parts in water vapor?
A
molecules of H20
B
atoms of H and atoms of O
C
drops of liquid water, H20
D
charged elements of hydrogen and oxygen
Explanation: 

Detailed explanation-1: -An atom is the smallest particle of an element, like oxygen or hydrogen. Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O.

Detailed explanation-2: -A water molecule is about 0.27 of a nanometer across.

Detailed explanation-3: -A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets.

Detailed explanation-4: -Answer and Explanation: The smallest particle of a compound is called a molecule. A compound is made up of two or more different chemical elements, e.g., a water molecule (also a compound) is made up of two hydrogen atoms and one oxygen molecule.

Detailed explanation-5: -Water is a compound because it is made up of water molecules. There is no such thing as water atoms. Water molecules are made of hydrogen and oxygen atoms, in the definite proportion of two hydrogens for one oxygen.

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