Helium (He) is an example of an element whose molecules consist of only one atom.
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Molecules are composed of atoms of the same or different elements bonded together chemically.
Water (H2O) is an example of a molecule composed of two hydrogen atoms bonded to one oxygen atom. The atoms are held together by covalent bonds, resulting in a polar molecule with unique properties such as surface tension, high specific ...
Using a standardized reference ensures consistency and accuracy in measuring fruit masses, allowing for fair transactions and reliable comparisons.
The fruit seller uses a watermelon as a standard reference, stating its mass as 12 units. He then compares the mass of each fruit he sells relative to one piece of the watermelon.