Question

all carbohydrates are more soluble in nonpolar solvents than in water. are simple sugars. have the general structure (c1h2o1)n or cnh2non. are polymers. are found in biological membranes.

Explanation:

Carbohydrates have the general formula $(C_1H_2O_1)_n$ or $C_nH_{2n}O_n$. They are not more soluble in non - polar solvents (polar, soluble in water), not all are simple sugars (can be disaccharides, polysaccharides), not all are polymers (monosaccharides aren't), and while some may be associated with biological membranes, it's not a defining characteristic. The general structure is the key identifying feature here.

Answer:

have the general structure $(C_1H_2O_1)_n$ or $C_nH_{2n}O_n$