Respuesta :
The statements that are true about molecules are:
- They are a group of atoms that are strongly joined.
- They are the smallest unit of an element or a compound.
WHAT IS A MOLECULE?
- A molecule is a substance that consists of two or more atoms linked together by a chemical bond, usually covalent bond.
- A molecule can also be referred to as the smallest unit of a pure substance (element or compound) that retains the chemical properties of such pure substance.
HOW CAN A MOLECULE BE FORMED:
- Molecules can either be made up of atoms of same kind e.g two atoms of the same element coming together. E.g. oxygen gas (O2), hydrogen gas (H2), chlorine gas (Cl2)
- Molecules can also be formed when two or more atoms of different kinds come together e.g CO2, H2O etc.
Therefore, the following statements about molecules are true:
They are a group of atoms that are strongly joined.
They are the smallest unit of an element or a compound.
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