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LiRa [457]
3 years ago
7

Refer to the graph. the graph shows the progress of digestion as carbohydrates, fats, and proteins pass through the human digest

ive tract. the horizontal axis indicates the relative distance along the digestive tract, from the mouth to the anus. the vertical axis indicates the percentage of undigested food remaining as the food moves through the digestive tract. the percentages of undigested carbohydrate, fat, and protein are shown separately, but they are identified as 1, 2, or 3. knowing that saliva breaks starches into monosaccharides, some of which are absorbed in the mouth, which of the traces indicates the carbohydrate digestion?
there is not enough information to determine the answer.



1



3





2



question 3 (multiple choice)

most of the body's energy needs should be supplied by dietary _____________.



fats



vitamins



proteins



carbohydrates



question 4 (multiple choice)

all essential amino acids ___________________.



are found in every protein molecule



are made in our body in…
Chemistry
1 answer:
nika2105 [10]3 years ago
8 0
3 protein may be the answer
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How much heat does a 100. g sample of copper absorb when its temperature increases by 30.0°C? The specific heat of copper is 0.3
erica [24]

Answer:

\boxed {\boxed {\sf B. \ 1170 \ Joules }}

Explanation:

We are asked to find how much heat a sample of copper absorbs when the temperature is increased.

Since we know the mass, temperature increase, and specific heat capacity, we can use the following formula to calculate heat.

q= mc \Delta T

The mass of the copper sample is 100 grams, the temperature is changed or increased by 30.0 degrees Celsius, and the specific heat of copper is 0.39 Joules per gram degrees Celsius.

  • m= 100 g
  • c= 0.39 J/g °C
  • ΔT= 30.0 °C

Substitute the values into the formula.

q= (100 \ g )(0.39 \ J/g \textdegree C ) (30.0 \textdegree C )

Multiply the first two values. Note that the units of grams cancel.

q= 39 \ J/ \textdegree C (30.0 \textdegree C )

Multiply again, this time the units of degrees Celsius cancel.

q= 1170 \ J

The copper sample absorbs <u>1170 Joules</u> of heat and <u>Choice B </u>is correct.

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2 years ago
5. What is the systemic name for the following structure?
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You are not showing the question, but I believe the answer is cis-3,4-dimethyl-3-hexene.

Explanation:

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MAGNESIUM (Mg)<br> +FLUORINE (F) =
bazaltina [42]

Answer:

MgF2 magnesium fluoride

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ser-zykov [4K]
The variable is what changes during an experiment. Hopefully this helped! :)
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