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3 years ago

According to the MyPyramid plan, which foods should be the smallest portion of a teen’s diet?

Chemistry

2 answers:

KATRIN_1 [288]3 years ago

8 0

The answer is oils. Oils are high in fat so they're aren't the most healthy thing to eat

Jobisdone [24]3 years ago

7 0

The answer is GRAINS

i realy hope this helped

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Which of the following phase changes only occurs in solids possessing vapor pressures above atmospheric pressure and at ambient

GuDViN [60]

Answer: The phase change process in which solids gets converted to gases is sublimation.

Explanation:

For the given options:

Option a: Condensation

It is a type of process in which phase change occurs from gaseous state to liquid state at constant temperature.

$Gas\rightleftharpoons Liquid$

Option b: Melting

It is a type of process in which phase change occurs from solid state to liquid state at constant temperature.

$Solid\rightleftharpoons Liquid$

Option c: Sublimation

It is a type of process in which phase change occurs from solid state to gaseous state without passing through the liquid state at constant temperature.

$Solid\rightleftharpoons Gas$

Option d: Deposition

It is a type of process in which phase change occurs from gaseous state to solid state without passing through the liquid state at constant temperature.

$Gas\rightleftharpoons Solid$

Hence, the phase change process in which solids gets converted to gases is sublimation.

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3 years ago

For which one of the following is ΔHfo zero?

Vlada [557]

The answer is most likely C

6 0

3 years ago

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One mole of ANY element contains the:

VMariaS [17]

Answer:

1)The molar mass of an atom is simply the mass of one mole of identical atoms. However, most of the chemical elements are found on earth not as one isotope but as a mixture of isotopes, so the atoms of one element do not all have the same mass.

2)Equally important is the fact that one mole of a substance has a mass in grams numerically equal to the formula weight of that substance. Thus, one mole of an element has a mass in grams equal to the atomic weight of that element and contains 6.02 X 1023 atoms of the element.

3 0

2 years ago

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What can you do differently for

drek231 [11]

Answer:

I would say, what helps me is really paying attention in class and asking questions, also making sure you study for upcoming test's and quizzes and completely assingments on time

Explanation:

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2 years ago

Chemosynthesis and photosynthesis are both processes that produce food. True or false?

MA_775_DIABLO [31]

Answer:

true

Explanation:

probably true

8 0

3 years ago