The correct answer option is 3. they make up larger compounds like fats and amino acids.
<u>Explanation:</u>
A carbohydrate is a biological molecule that consists of carbon (C), hydrogen (H) and oxygen (O) atoms.
It is one of the 4 main macro-molecules in cells that are made largely from Carbon, Oxygen, Hydrogen and Nitrogen. Therefore, option 3. 'they make up larger compounds like fats and amino acids' is incorrect.
The products will be magnesium phosphate and potassium chloride. You then have to watch a solubility chart to see which one of these is not soluable. In this case it is magnesium phosphate.
