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lys-0071 [83]
3 years ago
5

Despite the fact that the partial pressure difference is so much smaller for co2, why is there as much co2 exchanged between the

alveoli and blood as there is o2, ?
Chemistry
1 answer:
Snezhnost [94]3 years ago
7 0
This is due to the solubility of CO₂ in blood is more than the solubility of Oxygen in blood 
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What is the electron structure of a sodium atom?
Irina-Kira [14]

Answer:

1s2 2s2 2p6 3s1

Explanation:

All the elements in the periodic table, has an atomic number. This number tell us different things, such as number of protons, position in the periodic table among others.

One of the things that tell us the atomic number is the electron structure.

First, all elements begins always with 1s. This is because the first number indicates number of energy level which is in. This tell us, the period of the periodic table is the element, the s, is the type of orbital which the electrons are located. the s orbytal can only have 2 electrons max, and with the increasement of the atomic number, this electrons also increase.

Therefore for an element like Helium, (atomic number = 2) means that we have to begin with the 1s and put 2 electrons, to complete the atomic number. In this case, it would be 1s2.

When we surpass this number, we use another energy level, in this case, 2, and begin again with orbytal s. Then, when we surpass 2s2, we use now another orbytal, which is p. This is because we have more elements in the second period of the table, so we need another kind of energy levels to carry all the electrons. orbytal p can carry up to 6 electrons max, so for an element like Florine (Atomic number = 9), it's structure would be 1s2 2s2 2p5. As you can count the electrons, we have 2 + 2 + 5 = 9, we complete the atomic numbers and the electrons would be, the numbers of electrons located in the last energy level, in this case, the 2s and 2p, and it would be 7 electrons.

Now after this explanation, in the case of sodium (Na), the atomic number of sodium is 11, therefore, we need to count til 11 so:

[Na] = 1s2 2s2 2p6 3s1

As you can see, sodium is the first element of period 3 of the table, and we begin with the energy level 3. In your case it would be the last option you put.

8 0
3 years ago
The Embargo Act of 1807 and the Neutrality Acts
insens350 [35]
The Embargo Act of 1807 and the Neutrality Acts of the 1930's were both attempts by the United States to avoid foreign conflicts. The correct option in regards to all the options given in the question is option "3". The Embargo Act of 1807 prohibited all kinds of exports from United states of America. This Act would treat any export as illegal. This Act was also intended to keep America from avoiding any conflicts with the warring nations. The Neutrality act was also intended towards remaining neutral towards all fighting nations.


6 0
3 years ago
What causes the different colors of layers in a sedimentary rock? A. the cooling process of the magma B. the weather in the area
OLga [1]

Different colors of sedimentary rock are determined by the environment where they are located. For example, red rocks form where oxygen is present. Darker sediments form when the environment is oxygen poor.

So, basically, the weather and surroundings of the rock, so B.

4 0
2 years ago
The molar mass of NaOH is 40.00 g/mol. If 5.20 g NaOH are dissolved in 0.500 L of solution, what is the molarity of the solution
lyudmila [28]

 The molarity   of the solution is  0.260 M

 <u><em>calculation</em></u>

step 1: calculate  the moles of NaOH

moles  = mass÷ molar mas

= 5.20 g÷ 40.00 g/mol= 0.13  moles

Step 2: find the molarity of solution

molarity = moles÷volume  in liters

=0.13  moles÷ 0.500 L = 0.260 M

3 0
3 years ago
Read 2 more answers
An occluded front moves over farmland that has been experiencing drought conditions.
cupoosta [38]
Should be B. An extended period of rain
6 0
3 years ago
Read 2 more answers
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