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S_A_V [24]
4 years ago
5

Muscles, bones, skin, and

Chemistry
1 answer:
ziro4ka [17]4 years ago
8 0

Answer:

The answer is Protein.

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Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group.
Serjik [45]

I think the correct answer would be the last one.

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Why are some substances not able to dissolve in water?
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CaC2 + 2H2O(I) = C2H2(g) + Ca(OH)2(aq) how many grams of Ca(OH)2 would be formed with 3.20 moles of CaC2?
Jobisdone [24]

Answer:

236.8 g

Explanation:

From the reaction equation;

CaC2 + 2H2O(I) --------> C2H2(g) + Ca(OH)2(aq)

Since;

1 mole of CaC2 yields 1 mole of Ca(OH)2

It follows that 3.20 moles of CaC2 also yields 3.2 moles of Ca(OH)2

Mass of Ca(OH)2 = number of moles * molar mass

molar mass of Ca(OH)2 = 74 g/mol

Mass of Ca(OH)2 = 3.20 moles * 74 g/mol =

Mass of Ca(OH)2 = 236.8 g

3 0
3 years ago
the pressure of 8.4 of nitrogen gas in a flexible container is decreased to one-half its original size
lutik1710 [3]

The new volume is 33.6 L.

<h3>What is volume?</h3>

Volume can be described as a measure of occupied three-dimensional space.

From the question above, we obtain the following data:

Initial volume (V1) = 8.40 L L

Initial pressure (P1) = P

Initial temperature (T1) = T

Final pressure (P2) = one-half the original pressure = ½P

Final temperature (T2) = double the original temperature = 2T

Final volume (V2) = what?

The new volume can be obtained by using the universal gas law;

P1V1/ T1 = P2V2 /T2

P × 8.40 / T = ½P × V2 /2T

P × 8.40 / T = P × Volume 2 / 4T

Cross multiply

T × P × Volume 2 = P × 8.40 × 4T

Divide both side by T × P

Volume 2 = (P × 8.40 × 4T) /T × P

Volume 2 = 8.40 × 4

Volume 2 = 33.6 L

Thus, the new volume of the gas is 33.6 L.

Learn more about volume at: brainly.com/question/463363

#SPJ1

3 0
1 year ago
When a molecule absorbs a photon, one of its electrons is raised to the ________ state?
SpyIntel [72]
<span>When a molecule absorbs a photon, one of its electrons is raised to the excited state</span>
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4 years ago
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