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sineoko [7]
2 years ago
12

What happens when the two atoms are fairly close?

Chemistry
1 answer:
mezya [45]2 years ago
8 0
The atoms are not really sharing electrons as much as they are fighting over them this creates a force that makes the atoms stick together.
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Which pair must represent atoms of the same element?
andrew-mc [135]
Your answer is B and the element is Carbon

So what your looking for is matching isotopes. Isotopes are elements that are the same in amount of protons but different in mass meaning different number in neutrons. Because when you add the total protons and neutrons together you get your atomic mass. So this can be written as X=said element, top number above=different atomic mass, bottom number below=atomic number. Hope this help!!

Be careful because answer A has same masses but different atomic numbers so different atoms(elements)!!!
4 0
2 years ago
Explain how you could use the solubility of a substance to make a saturated solution.
dlinn [17]
A saturated solution is prepared by continuously adding solute to the solution until a stage is reached where the solute appears as a solid precipitate or as crystals to form a highly saturated solution. Consider the process of adding table sugar to a container of water.
6 0
2 years ago
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Which of the following would be the best choice for preparing a buffer with a pH = 8.0? Group of answer choices a solution of bo
ryzh [129]

Answer:

Hypochlorous acid - Sodium hypochlorite

Explanation:

A buffer works when pH you want is ± 1 unit of pKa of the buffer. For example, for a buffer with pKa 7, it works between 6 and 8 (7-1 and 7+1).

pKa = -log Ka:

pKa boric acid - Sodium borate: 9.23. As you want a pH of 8.0. This buffer has a pKa too high.

pKa Hypochlorous acid - Sodium hypochlorite: 7.46. With this pKa, this buffer is a great choice to prepare it with a pH = 8.0

pKa Formic acid - Sodium formate: 3.74. This pKa is too low to make a buffer with pH = 8.0

Best choice is:

<h3>Hypochlorous acid - Sodium hypochlorite</h3>
3 0
3 years ago
Acid rain occurs when sulfur dioxide in the atmosphere is oxidized in the presence of nitrogen dioxide. Acid rain is an example
Bas_tet [7]

Answer:

B. Secondary pollutant

Explanation:

A primary pollutant is directly emitted into the atmosphere. Volcano eruptions and emissions from cars can result in primary pollutants in the air.

Secondary pollutants are not directly put in the atmosphere. They are created when two or more primary pollutants in the atmosphere react. One example is smog.

Another example is acid rain. If sulphur dioxide, nitrogen dioxide and water react, then acid rain is formed. Therefore, acid rain must be a secondary pollutant.

The best answer choice is B. secondary pollutant

8 0
3 years ago
What is a substanceeas​
Mumz [18]

Answer:

substance*? a particular kind of matter with uniform properties.

Explanation:

5 0
2 years ago
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