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4 years ago

1. Energy in foods is provided by

Chemistry

1 answer:

ELEN [110]4 years ago

8 0

Answer:

Energy in foods is provided by macro-nutrients.

Explanation:

Nutrients are “environmental substances” used for growth, energy, and bodily functions of the organisms. Those nutrients that are required in larger amounts are called macro-nutrients.

There are 3 macro-nutrients needed by humans: lipids (fats), carbohydrates (sugar) and proteins. All these macro-nutrients gives energy in form of “calories”. For example:

In carbohydrates, there are '4 calories' of energy per gram.

In proteins, there are '4 calories' of energy per gram.

And in lipids, there are '9 calories' of energy in one gram.

This means that if you look at a food label and it lists 10 grams of carbohydrates, 0 grams of protein, and 0 grams of fat, that food would contain 40 calories.

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What happens when balloon filled with CO2 is released in air

statuscvo [17]

I don’t actually know for sure, but I think it would sink. Most of the mass of the molecule is from the oxygen.
Amu of O2 = 32
Amu of C = 12
And since most of the balloon is oxygen, it has no reason to actually float. It would be denser than the air, I’d imagine. I could be totally wrong here, I’m guessing based on my knowledge of chemistry

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3 years ago

What is the redox equation for sulphuric acid and magnesium ribbon

Wewaii [24]

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Magnesium ribbon: $Mg_(s)$
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3 years ago

Finding number of atoms 9H2SO4

Molodets [167]

Explanation:

23 are the number of atoms

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3 years ago

Identify the false statement from the following.

LUCKY_DIMON [66]

The false statement from the above is that: Temporary charge imbalances in the molecules lead to London dispersion forces.

<h3>What are the factors that affect London dispersion forces?</h3>

Generally, the factors which affects the London dispersion forces a dispersion force are as follows:

Shape of the molecules
Distance between molecules
Polarizability of the molecules

However, London dispersion forces simply refers to a sort of temporary attractive force formed when electrons in two adjacent atoms occupy positions that make the atoms form dipoles.

So therefore, temporary charge imbalances in the molecules lead to London dispersion forces is a false statement

Learn more about London dispersion forces:

brainly.com/question/1454795

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2 years ago

Medicationswith names ending in ER,CR,XR,and SR indicate they are __ medications a: extended or controlled release b: oral c: ch

DanielleElmas [232]

Answer: a: extended or controlled release

Explanation:

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3 years ago