How many calories are provided by a food that contains 20 grams of carbohydrate, 8 grams protein, and 5 grams of fat? a. 232 b. 378 c. 157 d. 258 e. 558?

Every gram of carbohydrate yields 4 Calories.
Every gram of protein also yields 4 Calories.
Every gram of fat yields 9 Calories.

20 g carb x 4 = 80 Cal
8 g protein x 4= 32 Cal
5 g fat x 9 = 45 Cal.

80+32+45 = 157 Calories. Answer C

A) 4 amusingb)alpha particle is a helium nucleus. it contains 2 protons and 2 neutrons.c)alpha particle has charge of +2.