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stepladder [879]
2 years ago
7

During which process does an atom gain one or more electrons?

Chemistry
1 answer:
valentinak56 [21]2 years ago
7 0
<em><u /></em>oxidation i say 33333333333333333333333
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Newton’s second law can be written using two formulas, what are they?
wariber [46]

Answer:

In equation form, Newton's second law of motion is a=Fnetm a = F net m . This is often written in the more familiar form: Fnet = ma. The weight w of an object is defined as the force of gravity acting on an object of mass m. ... Friction is a force that opposes the motion past each other of objects that are touching.

Explanation:

have a nice day :)

3 0
2 years ago
What can help keep nitrate levels within the safe range?
Paha777 [63]

Answer: Drinking water with levels of nitrate at or below 10 mg/L is considered safe for everyone.

Explanation:

The U.S. Environmental Protection Agency (EPA) standard for nitrate in drinking water is 10 milligrams of nitrate (measured as nitrogen) per liter of drinking water (mg/L).

4 0
3 years ago
How many atoms are there in 10.0 g of sodium?
Alex73 [517]
Use the grams to moles first. The molar mass of sodium is 22.99g, so 10/22.99 ≈ 0.43 moles. The use moles to atoms conversions. 0.43 x (6.022 x 10^23), which would be about 2.62 x 10^23 atoms in 10g of sodium.
8 0
3 years ago
What is h3o in a solution of naoh whose concentration is 3.75
r-ruslan [8.4K]

The H3O in a solution is 12.57.

<u>Explanation</u>:

The hydronium ion concentration can be found from the pH by the reverse of the mathematical operation employed to find the pH.

                         pOH = -log[H3O]

                         pOH = -log(3.75x10^-2)

                                  = 1.43

                Now,    pH = 14 - 1.43

                                  = 12.57

The H3O in a solution is 12.57.

8 0
2 years ago
Can someone explain this to me?
ExtremeBDS [4]

Other than to say that I see why you are having trouble, I think you could use either.

Having said that, the blue is far more pronounced going from 7 to 9. Seven is more of a dirty blue at 7. It is sky blue at 9. I would pick that.

When you look up it's pH it is given as 7.6 which is about as slightly basic as you can get. At that point it starts to turn blue.

Methyl Red is really weird stuff.

It is red under pH = 4.4 which definitely acidic and yellow above 6.2. It is orange in between.

I would still go with Bromothymol blue, but I'm betting that either could be used.

I hope this is a discussion question, because if you want my honest opinion, it's too close to call.

7 0
3 years ago
Read 2 more answers
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