Of the following which would be least likely to be present as a starting reactant found in an abiotic pre-life soup

carbon dioxide

sucrose

water

methane

ammonia

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.