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
Darina [25.2K]
3 years ago
14

Chemistry expert please help thanks

Chemistry
1 answer:
AnnZ [28]3 years ago
3 0
25. C
26. B
27. A
28. D
29. D
30. A
31. B
32. D
33. B
34. A
You might be interested in
Rank these acids according to their expected pKa values.ClCH2COOHClCH2CH2COOHCH3CH2COOHCl2CHCOOHIn order of highest pka to lowes
Ilia_Sergeevich [38]

Answer:

CH₃CH₂CH₂COOH > CH₃CH₂COOH > ClCH₂CH₂COOH  > ClCH₂COOH

Explanation:

Electron-withdrawing groups (EWGs) increase acidity by inductive removal of electrons from the carboxyl group.

Electron-donating groups (EDGs) decrease acidity by inductive donation of electrons to the carboxyl group.

  • The closer the substituent is to the carboxyl group, the greater is its effect.
  • The more substituents, the greater the effect.  
  • The effect tails off rapidly and is almost zero after about three C-C bonds.

CH₃CH₂-CH₂COOH —  EDG —                         weakest —  pKₐ = 4.82

      CH₃-CH₂COOH — reference —                                     pKₐ = 4.75

  ClCH₂-CH₂COOH — EWG on β-carbon— stronger —     pKₐ = 4.00

           ClCH₂COOH — EWG on α-carbon — strongest —  pKₐ = 2.87

6 0
3 years ago
Read 2 more answers
What is the best example of an experimental scientific investigation?
ivolga24 [154]

Scientific investigation: The process in which scientist solve the question by using different systematic approach. It can be initiated in different ways.

Experimental Scientific investigation: The investigation in which scientist answer the question on the basis of experimental results. Experimental investigation includes both dependent and independent variables, and only one variable is tested at a time is possible.

The best example of an experimental scientific investigation is: when we placed a whole apple and apple slice under sun, and noted down how many days it will take to  rot in order to compare the break down of apple slice and whole apple.

Thus, option (B) is the correct answer.

7 0
3 years ago
How do you know how to order an empirical formula?
inessss [21]

Answer:

Start with the number of grams of each element, given in the problem. the mass of each element = the percent given. Convert the mass of each element to moles using the molar mass from the periodic table. Divide each mole value by the smallest number of moles calculated.

3 0
2 years ago
Read 2 more answers
Please help me with these?
Julli [10]

Question 5 is the second one.


8 0
3 years ago
If we were to dissolve iodine in alcohol, which term would describe the alcohol?
marishachu [46]
It will be Solvent the term that would describe the alcohol will be solvent.
4 0
3 years ago
Other questions:
  • Which of the following you do NOT need to pay attention while using a centrifuge?
    9·1 answer
  • What is the smallest part of an element?
    6·2 answers
  • Can someone tell me how to do a full chemical equation with balancing and everything?
    9·1 answer
  • Which organic compound is isometric with at least one aldehyde?
    12·2 answers
  • "The composting process is the A conversion of organic waste into soil conditioners or mulch. B.redesign of chemical processes t
    5·1 answer
  • Jada’s class grows an organic garden as part of a project. Students grow their garden for two months but find the plants are gro
    14·2 answers
  • Write the empirical formulas of the following compounds: (a) Al2Br6, (b) Na2S2O4, (c) N2O5, (d) K2Cr2O7, (e)H2C2O4.
    15·1 answer
  • In the reaction of chlorine with calcium, explain which atom is oxidized.
    5·1 answer
  • Match the followings.
    8·1 answer
  • Question 7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!