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puteri [66]
2 years ago
12

The nucleus’ pull on its electrons, taking into account any attractions weakened by shielding is called the:

Chemistry
1 answer:
Sever21 [200]2 years ago
8 0

Answer:

It's called the shielding effect

Explanation:

It describes the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell. (I hope this helps)

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Examine the model of a metallic bond.
Sindrei [870]

Answer:

b the delocalized

Explanation:

it could be the right answer

3 0
3 years ago
76/304=81/k what is K and show work plez
siniylev [52]
You can cross multiply and then get k alone so it would look like this:
76         81    
-----  =   ------    =  76k= 24624
304        k            -----  -----------  =      k  =  324
                             76        76


so k is equal to 324

hope this helps have a nice day
4 0
3 years ago
A gas at 127०C and 10.0 L expands to 20.0 L. What is the new temperature in Celcius? (HINT: You need to convert to Kelvins solve
Snowcat [4.5K]

Answer:

526.85K

Explanation:

Based on Charles's law, the volume of a gas is directly proportional to absolute temperature. The formrula is:

V₁ / T₁ = V₂ / T₂

<em>Where 1 represents the initial state and 2 the final state of the gas</em>

Using the values of the problem:

V₁ = 10.0L

T₁ = 127°C + 273.15K = 400.15K

V₂ = 20.0L

Thus, replacing in the formula:

10.0L / 400.15K = 20.0L / T₂

T₂ = 800K

In Celsius:

800K - 273.15 =<em> 526.85K</em>

<em />

3 0
4 years ago
What is the molarity of a solution with 2 moles of HCl in 2000 mL?
ikadub [295]

Answer:

"1 M" will be the right solution.

Explanation:

The given values are:

Number of moles,

= 2 moles

Volume of solution,

= 2000 mL

or,

= 2 L

Now,

The molarity of the solution will be:

=  \frac{Moles}{Liters}

On substituting the values, we get

=  \frac{2}{2}

=  1 \ M

7 0
3 years ago
Why is scientific notation important in chemistry?
Varvara68 [4.7K]
Calculations in chemistry can range from large numbers to the smallest number in decimals to be more accurate in data results. When this occurs using scientific notations allows you to note down results regardless of size as accurate as possible without writing a lot of numbers.
3 0
3 years ago
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