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Tutor profile: Althea A.

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Althea A.
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Subject:Nutrition and Wellness

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Question:

If a breakfast sandwich has 18 grams of carbs, 5 grams of protein, and 3 grams of fat, how many calories does the sandwich have in total?

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Althea A.

One gram of carbohydrate and another gram of protein both have 4 calories per gram. One gram of fat, conversely, has 9 calories per gram. Calculate the calories in each macronutrient first: ~Carbs - 18 grams x 4 calories per gram = 72 calories ~Proteins - 5 grams x 4 calories per gram = 20 calories ~Fats - 3 grams x 9 calories per gram = 27 calories Then, add the calories together: 119 calories, or 119 kcals.

Subject:Basic Chemistry

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Question:

How many valence electrons does the element of Carbon have?

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Althea A.

The element of Carbon has four valence electrons. Valence electrons are the outermost electrons on an atom and all electrons in Group 4 of the Periodic Table of Elements have four valence electrons.

Subject:Anatomy

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Question:

Name two hormones that play a role in the sexual development of the female reproductive system.

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Althea A.

Some hormones that contribute to the development of the female reproductive system include estrogen, progesterone, luteinizing hormone, and follicle-stimulating hormone.

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