hi friend! its b, or a 1:2 ratio. i looked it up for help, and didn't have anything, so I did 1:2 and it was correct.
Answer:
Sry man wish I knew trust me tho you should go over it with your parents just let them know that your struggling and maybe they will go over it and help you get a better understanding of it also try asking an older sibling but yeah good luck with that have a good night!
Explanation:
The balanced chemical equation between HCl and
is:

Moles of
= 
Moles of HCl required to neutralize
:

Calculating the volume of HCl from moles and molarity:

Answer:
40 calories
Explanation:
If we take average calorie per gram of protein and carbohydrate as 4 calories/gram.
Then, Calories from 4 g of protein = 4g× 4calories/g = 16 calories
Similarly, calories due to 6 g of carbs =6 g× 4colries/g= 24 calories
Therefore, total calories = 16+24= 40 calories