What might the name "carbohydrate" might indicate about the chemical composition of sugars?

Answer 1

See the explanation.

The ratio of hydrogen to oxygen in carbohydrates is 2:1, the same as water. So it's as if the carbon atoms are combined with water. For monosaccharides the general formula is #"CH"_2"O"#.

One-saccharides

#"C"_6"H"_12"O"_6"# (glucose, fructose, galactose)

#"C"_5"H"_10"O"_5"# (ribose)

Disaccharides

#"C"_12"H"_22"O"_11"# (sucrose, maltose, lactose)

Polysaccharides

#("C"_6"H"_10"O"_5")"_n"# (starch and cellulose)

#"C"_24"H"_42"O"_21"# (glycogen)

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Answer 2

Owen Ambrose

The name "carbohydrate" suggests that these molecules are composed of carbon ("carbo-") and elements of water, which means hydrogen and oxygen ("hydrate"), typically in a ratio similar to that of water (2:1 of hydrogen to oxygen).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.