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mezya [45]
3 years ago
12

An emission of green visible light from the Cu2+ ion. The literature reports emission of blue visible light from the Cu+ ion. Ch

oose the statement(s) below that best explain this data. (Select all that apply.)
A. The Cu+ ion has a greater effective nuclear charge than the Cu2+ ion.
B. Increasing the effective nuclear charge on an ion results in energy levels that are closer together.
C. Increasing the effective nuclear charge on an ion results in the emission of higher frequency photons.
D. Increasing the effective nuclear charge on an ion results in the emission of shorter wavel
Chemistry
1 answer:
lord [1]3 years ago
3 0
B. Increasing the effective nuclear charge on an ion results in energy levels that are closer together.
hope it helps
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PLEASE HELP ME DUE TOMORROW IT REALLY HELPS IF YOU HELP ME THANK YOU SO MUCH IS YOU DO HELP ME!!
aliya0001 [1]

concentration of the contact solution = 3 %

Explanation:

We have the following data:

10.7 g of hydrogen peroxide H₂O₂

355 g of solution

To calculate the concentration of the contact solution we use the following formula:

concentration = (mass of solute / mass of solution) × 100

concentration of the contact solution = (10.7 / 355) × 100

concentration of the contact solution = 3 %

Learn more about:

concentration of solutions

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3 0
3 years ago
Which statement is true for all minerals?
ss7ja [257]
A. because atoms create crystal structures to form different kind of materials
5 0
3 years ago
Read 2 more answers
Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units. What is the value of t?
weeeeeb [17]
     If points E and D are midpoints of triangle ABC, then the perimeter of the triangle is:AB + BC + CA = 48, or:
3 t + 3 t + 4 t + 4 t + 7 t + 6 = 4821 t = 48 - 621 t = 42t = 42 : 21t = 2Answer: A.  2.

3 0
3 years ago
Read 2 more answers
During a new moon, the moon is
IgorLugansk [536]
It is A. This is because, according to your diagram, the sunlight hits the moon, and it is blocking some of the sunlight to reach the Earth. This means that it is in between both of them.
4 0
3 years ago
Assume that temperature and number of moles of gas are constant in this problem.
IrinaVladis [17]

Question:

a. a direct linear relationship

b. an inverse linear relationship

c. a direct nonlinear relationship

d. an inverse nonlinear relationship

Answer:

The correct option is;

d. An inverse nonlinear relationship

Explanation:

From the universal gas equation, we have;

P·V = n·R·T

Where we have the temperature, T and the number of moles, n constant, therefore, we have

P×V = Constant, because, R, the universal gas constant is also constant, hence;

P×V = C

P = \frac{C}{V}

Since P varies with V then the graphical relationship will be an inverse nonlinear as we have

V P    C

1 5         5

2 2.5      5

3 1.67     5

4 1.25     5

5 1          5

6 0.83    5

7 0.7      5

8 0.63    5

9 0.56    5

10 0.5      5

Where:

V = Volume

P = Pressure

C = Constant = 5

P = C/V

The graph is attached.

4 0
3 years ago
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