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3 years ago

15

How does the nucleus of a copper atom compared to the nucleus of a nickel atom

1 answer:

forsale [732]3 years ago

6 0

Copper has 29 protons in the nucleus, while Nickel has 28 protons.

You might be interested in

In a redox reaction what happens to a substance's charge when it is oxidized

Temka [501]

<span>oxidizing substance removes electrons from another substance, which are then added to itself, the oxidizing substance becomes â€średucedâ€ť (more negative). And because it â€śacceptsâ€ť electrons .</span>

5 0

2 years ago

Two different bromide solutions are mixed with each other: Solution 1 is an aqueous solution of 4.85 g aluminum bromidein 150. m

erma4kov [3.2K]

Answer:

M=0.380 M.

Explanation:

Hello there!

In this case, given those two solutions of aluminum bromide and zinc bromide, it is firstly necessary to compute the moles of bromide ions in each solution as shown below:

$n_{Br^-}^{in\ AlBr_3}=4.85 gAlBr_3*\frac{1molAlBr_3}{266.69gAlBr_3}*\frac{3molBr^-}{1molAlBr_3} =0.05456molBr^-\\\\n_{Br^-}^{in\ ZnBr_2}=7.75gZnBr_2*\frac{1molZnBr_2}{225.22gZnBr_2}*\frac{2molBr^-}{1molZnBr_2} =0.06882molBr^-$

Now, we compute the total moles of bromide:

$n_{Br^-}=0.05456mol+0.06882mol\\\\n_{Br^-}=0.12338mol$

Then, the total volume in liters:

$150mL+175mL=325mL*\frac{1L}{1000mL} \\\\=0.325L$

Therefore, the concentration of total bromide is:

$M=\frac{0.12338mol}{0.325L}\\\\M=0.380M$

Best regards!

8 0

2 years ago

`Let's just consider the concept of stoichiometry without any confusing chemicals. Here is a generic equation: 2A + 6B ? 3C. If

lesya [120]

Answer:

Option D. 5.5

Explanation:

The equation is this:

2A + 6B ⇒ 3C

With the amounts that we were given, let's determine which is the <em>limting reactant</em>

2 A reacts with 6 B

4 A will react with ( 4 .6)/2 = 12B

I have 11 B, so the limiting is B

6 B react with 2 A

11 B will react with (11 .2 )/6 =3.66 A

I have 4 A, so A is the excess.

6 B produce 3 C

11 B will produce ( 11 .3)/6 = 5.5C

7 0

3 years ago

A family leaves for summer vacation by driving on the highway. The car's tires start the trip with a pressure of 3.8atm at a tem

goldenfox [79]

Answer: The pressure of the tires after driving is 4.9atm

Explanation: Please see the attachments below

4 0

2 years ago

A chemist is using a solution of hno3 that has a ph of 3.75. what is [h ] for the solution?

kap26 [50]

A chemist is using a solution of HNO₃ that has a pH of 3.75. what is [H⁺] for the solution is 1.7 × 10⁻⁴M.

<h3>How do we calculate the [H⁺]?</h3>

Concentration of H⁺ ion will be calculated by using the below equation of pH as:

pH = -log[H⁺]

or [H⁺] = $10^{-pH}$

Given that, pH = 3.75

So concentration of H⁺ ion will be calculated as:

[H⁺] = $10^{-3.75}$

[H⁺] = 1.7 × 10⁻⁴M

Hence concentration of H⁺ ion is 1.7 × 10⁻⁴M.

To know more about pH & [H⁺], visit the below link:
brainly.com/question/8758541

4 0

1 year ago