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Answer:
Oxygen molecule
Water molecule
Carbon dioxide molecule
Amino acid molecule
Glucose molecule
Starch molecule
Protein molecule
Explanation:
The smallest molecule is Oxygen, with a molecular mass of 15,999u.
The following component is water with three atoms, two of Hydrogen and one of Oxygen. Its molecular weight is 18.01528 g/mol.
Then, we have carbon dioxide, which also has three atoms. One of Carbon and two of Oxygen, but it is bigger than water due to its molecular weight that is 44.01 g/mol.
In the fourth place, we have an amino acid molecule. Its molecular weight is approximately 110 g/mol, and they are made of a central carbon, a carboxyl group, an amine group, one Hydrogen, and they can have an R chain.
Following the amino acid, we have glucose with a molecular weight of 180.156 g/mol. Glucose has six Carbons, 12 Hydrogens, and 6 Oxygens.
Then we have a starch molecule, which has glucose molecules, so it is bigger. Its molecular weight is 12 561,141 g/mol.
Lastly, we have a protein molecule, which is the union of several amino acids, and they can be of great weight depending on the number of amino acids.
Larger molecules contain heavier atoms and have a large relative molecular mass.
The size of molecules is determined by their relative molecular mass. Molecules that have a greater relative molecular mass are heavier than molecules that have a smaller relative molecular mass.
The order of increasing relative molecular mass is shown below;
- water molecule
- oxygen molecule
- carbon dioxide molecule
- amino acid molecule
- glucose molecule
- protein molecule
- starch molecule
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