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Evgen [1.6K]
3 years ago
6

What parts of a divers body are most affected by pressure changes?

Chemistry
1 answer:
Yanka [14]3 years ago
5 0
I would say the head and heart because if you swim deep in the ocean you will feel pressure in your heart and head because the muscles in your body are closing in on them

hope i helped
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a running track has circumference of 400m. How many laps of the track should be completed during a 10km race
Tanya [424]

Answer:

25

Explanation:

Step 1: Given data

Circumference of the running track (c): 400 m

Total distance completed during the race (d): 10 km

Step 2: Convert "d" to meters

We will use the conversion factor 1 km = 10³ m.

10 km × (10³ m/1 km) = 10⁴ m

Step 3: Calculate the number of laps to be completed (n)

We will use the following expression.

n = d/c

n = 10⁴ m/400 m

n = 25

3 0
3 years ago
Arrange these molecules in order of decreasing mass: C​6​H​14​ , NO​2​ , Fe​2​O​3 ​, and CaCO​
babunello [35]

The following is the arrangement of the given molecules in decreasing order of mass: \text{ Fe2O3} > \text{C6H14} > \text{CaCO} > \text{NO2}

<u>Solution:</u>

First inorder to arrange the elements in descending order of their mass we have to calculate the molecular mass of each element. The calculation is as follows:

<u>Mass of C6H14:</u>

C\rightarrow6\times12.01 = 72.06

H\rightarrow14\times1.008 = 14.112

<em>Mass of C6H14 is 86.172</em>

<u>Mass of NO2:</u>

N\rightarrow1\times14.0067 = 14.0067

O\rightarrow2\times15.9994 = 31.9988

<em>Mass of NO2 is 46.0055</em>

<u>Mass of Fe​2​O3:</u>

Fe\rightarrow2\times55.845 = 111.69

O\rightarrow3\times15.9994 = 47.9982

<em>Mass of Fe2O3 is 159.6882</em>

<u>Mass of CaCO:</u>

Ca\rightarrow1\times40.078 = 40.078

C\rightarrow1\times12.01 = 12.01

O\rightarrow1\times15.9994 = 15.9994

<em>Mass of CaCO will be 68.0874</em>

So, the order will be 159.6882>86.172>68.0874>46.0055 which is \text{ Fe2O3} > \text{C6H14} > \text{CaCO} > \text{NO2}

6 0
3 years ago
How many atoms are found in 12.0 grams of Helium?
Allisa [31]
<span>Each mole contains Avagodro's number of atoms i.e. 6.023x10^23, so

3 moles x 6.023x10^23 atoms/mole = 18.069x10^23 atoms = 1.8x19^24 atoms </span>
3 0
3 years ago
Read 2 more answers
Water can be formed from the synthesis reaction of hydrogen with oxygen<br><br> PLEASE HELP
Anestetic [448]

Answer:

1.4 mols

4th answer

Explanation:

22. 5 g of O2 in moles = (22.5/32) mols = 0.703 mol

The stoichiometry between O2 and H2O =1: 2

Therefore H2O produced = 2 * 0.703 mols=1.406 mols

8 0
3 years ago
Balance the following equations:
neonofarm [45]
Hope this helps! If you dont understand balancing equations in general, say so in the comments, I’m happy to help

7 0
3 years ago
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