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
liubo4ka [24]
2 years ago
8

2) explain why Ce(iii) with a 4f1 configuration is colourless and Ce(iv) with 4f0 configuration is red?​

Chemistry
1 answer:
kykrilka [37]2 years ago
5 0

Answer:

Don't know don't know don't know

Explanation:

sorry for the disturb ment the UK. I have been a while. I think it would have been in touch and go to bed now. The list is not the only way I am not sure 2 to the top right of the most of the most important things. It has been a 22nd. This will help us improve your chances are you looking 8 the best way for the use of this message. Any delivery times stated that the UK. The comments. I have been a while. I have been a while. I have been a while. How do we have a look at the end. I have been a while. I have been a while. I have been a long term. I have been a while. I have been a while. I have been a while

You might be interested in
A material found in air, water, or soil that is harmful to humans or other organisms
UNO [17]
The answer is pollutant
3 0
3 years ago
Which of the following causes high and low tides on Earth? A. The moon's gravitational pull on Earth causes water to bulge on tw
Finger [1]
A. the moon's gravitational pull on earth causes water to bulge on two sides of the earth
5 0
3 years ago
Read 2 more answers
What color of light is transmitted and refracted by a prism first?
nevsk [136]

Answer:

The red light is refracted least. The violet light is refracted most.

Explanation:

3 0
3 years ago
Read 2 more answers
PLs heLp Me
olchik [2.2K]

Answer:

Opaque → a.no light travels through the material; all light is reflected or absorbed

Translucent → b.some light travels through the material and the image cannot be seen clearly

Transparent → c.all light travels through the material and the image can be seen clearly

Explanation:

Hope this helps :)

7 0
3 years ago
Read 2 more answers
Draw the alkene formed when 1-heptyne is treated with hbr in the presence of peroxide.
Nimfa-mama [501]
<h2>Heptene formed is -</h2><h2>CH_3-CH_2-CH_2-CH_2-CH_2-CH=CHBr</h2>

Explanation:

The two possibilities when the peroxide is not present

  • CH_{3}-CH_{2}-CH_{2}-CH_{2}-CH_{2}-C≡CH +HBr → CH_3-CH_2-CH_2-CH_2-CH_2-CBr=CH_{2}

  • CH_3-CH_2-CH_2-CH_2-CH_2-CBr=CH_2 + HBr →CH_3-CH_2-CH_2-CH_2-CH_2-CBr_2-CH_3

In presence peroxide,

CH_3-CH_2-CH_2-CH_2-CH_2-C≡CH+ HBr →CH_3-CH_2-CH_2-CH_2-CH_2-CH=CHBr

  • When peroxides are present in the reaction mixture, hydrogen bromide adds to the triple bond of heptane with regioselectivity.
  • This reaction is opposite to that of Markovnikov's rule which says that when asymmetrical alkene reacts with a protic acid HX, then the hydrogen of an acid is attached to the carbon with more in number of hydrogen substituents, and the halide (X) group is attached to the carbon with more in number of substituents of alkyl.
  • One mole of HBr adds to one mole of 1-heptane.
  • The structure of heptene formed is -

CH_3-CH_2-CH_2-CH_2-CH_2-CH=CHBr

5 0
3 years ago
Other questions:
  • Identify the compound that does not have hydrogen bonding. identify the compound that does not have hydrogen bonding. ch3oh h2o
    9·2 answers
  • How many significant figures are there in the measurement 0.003kg
    8·1 answer
  • How many equivalent resonance forms can be drawn for co32-? (carbon is the central atom.) how many equivalent resonance forms ca
    8·1 answer
  • Alveolar air (a mixture of nitrogen, oxygen, and carbon dioxide) has a total pressure of 0.998 atm. If the partial pressure of o
    7·1 answer
  • Where is tenessine on the periodic table?
    9·1 answer
  • Which ion below is present in greatest concentration in a basic (alkaline) solution
    15·2 answers
  • HELP ITS OVER DUE AND GRADE BOOK ENDS MARCH 5TH
    5·1 answer
  • PLEASE HELP ITS URGENT!! How do I answer this? I will mark brainlist
    6·1 answer
  • The vapor pressure of a system at equilibrium
    10·1 answer
  • Because of a scarcity of workers in the New World, persons were transported against their will to work on large farms without pa
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!