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Biology, 11.10.2019 01:00 jamesleecy06

Katie wants to make ball-and-stick models of the four macromolecules. she has colored balls for each of the elements in these molecules, including the following.

red: hydrogen
black: carbon
purple: oxygen
green: nitrogen

in which macromolecule will she use the black, red, and purple balls in a ratio of 1: 2: 1

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