Answer:
C) 170 Cal
Explanation:
We are given the composition of a food sample as;
Carbohydrate = 25 g
fat = 8 g
Protein = 5 g
We are needed to determine the energy content of the food;
We need to know the amount energy yielded by each food substance.
That is; carbohydrates and proteins generate 4 calories per gram while fats generates 9 calories per gram.
Therefore;
Amount of energy will be;
= (25 × 4 cal/g) + (8g × 9 cal/g) + (5 g × 4 cal/g)
= 172 cal
Approximately , 170 calories
Therefore, the energy content will be 170 calories
The arrangement of valence electrons in metals can be best described by the
A sea of electrons.
Answer:
vertebral column
Explanation:
A lamprey's body has smooth, scale-less skin and two dorsal fins, but has no lateral line, no vertebrae, no swim bladder, and no paired fins.
Tuna is vertebrate.
30ml of a 2.50 M hydrochloric acid solution is required to make 100.0 mL of a 0.750 M solution.
<h3>What is HCl?</h3>
HCl is an acid which is made up of hydrogen and chlorine gas.
By the formula of dilution
M1V1 = M2V2
where V1 = 2.50 m
M2 = 100.0
V2 = 0.750 m
M1 × 2.50 m = 100.0 × 0.750 m
M1 = 30 ml
Thus, the M1 is 30 ml option a is correct.
Learn more about HCl
brainly.com/question/3637432
Answer:
Potential energy = 441 N
Explanation:
Given:
Mass M = 15 kg
Height = 3 m
Find:
Potential energy
Computation:
Potential energy = mgh
Potential energy = (15)(9.8)(3)
Potential energy = 441 N
