1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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
You might be interested in
A 100.0 ml sample of 0.18 m hclo4 is titrated with 0.27 m lioh. determine the ph of the solution before the addition of any lioh
snow_lady [41]
Thank you for posting your question here at brainly. Below is the solution:

 <span>moles HClO4 = 0.100 L x 0.18 M = 0.018 
moles LiOH = 0.030 L x 0.27 = 0.0081 
moles H+ in excess = 0.018 - 0.0081 = 0.0099 
total volume = 0.130 L 
[H+] = 0.0099/ 0.130= 0.0762 M 
pH = 1.12</span>
3 0
3 years ago
Nitrogen monoxide and hydrogen react to form nitrogen and water, like this: 2NO+2 H2(g)-N29)+2H2O(9) Write the pressure equilibr
lara31 [8.8K]

Answer:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)² = Kp

Explanation:

The reaction is:

2NO + 2H₂ → N₂ + 2H₂O

The expression for Kp (pressure equilibrium constant) would be:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)²

There is another expression for Kp, where you work with Kc (equilibrium constant)

Kp = Kc (R.T)^Δn

where R is the Ideal Gases constant

T° is absolute temperature

Δn = moles of gases formed - moles of gases, I had initially

4 0
4 years ago
The abbreviation for refrigerants containing chlorine fluorine carbon and hydrogen is
slega [8]
<span>The answer is CFCs. The abbreviation stands for Chlorofluorocarbons. They are made by fully halogenating paraffin hydrocarbon. These compounds are known to cause climate change damaging the ozone layer. It is, therefore, advisable to properly dispose off of refrigerators, solvents and propellants</span>




5 0
3 years ago
How many atoms are in 1.50 moles of fluorine gas
evablogger [386]
1.8x10^24 atoms is How many atoms are in 1.50 moles of fluorine gas
8 0
4 years ago
Andrea and the other members of the tennis team are practicing hitting tennis balls. If two people hit identical balls at the sa
almond37 [142]

Answer:

D

Explanation:

The formula for calculating kinetic energy is 1/2mv^2, where m is the mass and v is the velocity or speed of the object. Since all of the balls have the same mass, the one with the highest speed or velocity will have the highest kinetic energy. Hope this helps!

8 0
3 years ago
Other questions:
  • A student has a 2.123 g sample of a hydrated salt. she heats it to drive off all the water. after heating to constant mass, the
    6·1 answer
  • 2 grams of a substance was dissolved in 75.0 g of water resulting in a temperature decrease from 23.1 ⁰C to 18.7 ⁰C. The specifi
    9·1 answer
  • Which of the following is a property of a pure substance?
    11·2 answers
  • What is an oxidation reaction? ​
    12·1 answer
  • Calcium drawing look like
    15·1 answer
  • How many moles of O2 are needed to burn 2.56 moles of CH3OH?
    11·1 answer
  • HELPP!<br> how many grams are in 1.50 x 10(24) atoms of copper?
    12·1 answer
  • Gases in order of increasing average molecular speed from slowest to fast at 25 c he,ne,nh3,no2,co.​
    6·1 answer
  • HELP ME PELASE I JUST NEED THIS LAST QUESTION!
    15·1 answer
  • Calculate mole fraction of benzene (70 g) having 30 gram of mass of carbon tetrahedral​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!