6 - one sodium atom, 1 hydrogen atom, 1 carbon atom, and 3 oxygen atoms.
The answer is: [D]: a reactant.
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It is A since the tails are hydrophobic.
A) At 0 C water forms ice but as mentioned above F) water's greatest density occurs at 4 C and it decreases below 4 C so ice is lighter than 4C water, thus, at 0C ice comes to surface and acts as insulator thereby preventing lower water from freezing.
