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
7nadin3 [17]
3 years ago
6

Answer my my science homework please

Chemistry
1 answer:
ludmilkaskok [199]3 years ago
5 0
1. D

2. <span>83.5 million years ago - 66 million years ago

3. </span><span>It had armor and could rotate to keep its caudal bludgeon facing the enemy.

hope this helped :)
alisa202</span>
You might be interested in
In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current
lapo4ka [179]
<h3><u>Answer;</u></h3>

Magnets

In large generators in power plants, <u>magnets</u> rotate inside a coil of wire to produce an electric current.

<h3><u>Explanation;</u></h3>
  • Generators are devices that use electromagnetic induction to convert mechanical energy to electrical energy.
  • In power plants, large wheel known as turbine that rotates when pushed by steam,wind, or water and provides mechanical energy to a generator.
  • <u><em>Generators are used in power plants and have very large quantities of copper wire spinning around inside very large magnets, at very high speeds. A turbine spins the shaft that runs the generator. Eventually, electric current is generated.</em></u>
8 0
3 years ago
identify the reagents necessary to achieve each of the following transformations o3 dms, pcc, ch2cl, h2so4,h2o,hgso4
hoa [83]

the reagents necessary to convert alcohol to ketoneNa_2Cr_2O_7 , H_2O which involves oxidation of alcohols.

<h3>What is oxidation of alcohols?</h3>
  • Alcohol oxidation is a significant organic chemistry process. Secondary alcohols can be oxidized to produce ketones, while primary alcohols can be oxidized to produce aldehydes and carboxylic acids.
  • In contrast, tertiary alcohols cannot be oxidized without the C-C bonds in the molecule being broken.
  • In order to cause primary alcohols to oxidize into aldehydes
  1. Cr_2O_7 ^-^2 (dichromate)
  2. CrO_3/pyridine (Collins reagent)
  3. Chromium pyridinium compound (PCC)
  4. Dichromate of pyridinium (PDC, Cornforth reagent)
  5. Periodinane by Dess-Martin
  6. Oxalyl chloride with dimethylsulfoxide (DMSO) for Swern
  • oxidation of secondary alcohols to ketones
  1. Cr_2O_7 ^-^2 (dichromate)
  2. CrO_3/pyridine (Collins reagent)
  3. Chromium pyridinium compound (PCC)
  4. Dichromate of pyridinium (PDC, Cornforth reagent)
  5. Periodinane by Dess-Martin
  6. Oxalyl chloride and dimethyl sulfoxide (DMSO) (Swern oxidation)
  7. CrO_3, H_2SO_4/acetone (Jones oxidation)
  8. Acetone with aluminum isopropoxide (Oppenauer oxidation)

To learn more about oxidation of alcohols with the given link

brainly.com/question/7207863

#SPJ4

<u>Question:</u>

Identify the reagents necessary to achieve each of the following transformations

a. O_3 , DMS

b.H_2SO_4 , H_2O , HgSO_4

c.Na_2Cr_2O_7 , H_2O

d.Fe ^ {2+}, NaOH

3 0
2 years ago
Which of these types of radiation has the greatest penetrating power?(1) alpha (3) gamma
Masteriza [31]
(3) Gamma has the greatest penetration power. Alpha has low and both beta and positron have medium. Hope I helped :)
8 0
3 years ago
Pollution comes from<br> many small sources.
Digiron [165]

Answer: True

Hope this helps

5 0
3 years ago
If a substance has ph of 3.2 what is the poh
Oxana [17]
It is a base? i believe
7 0
3 years ago
Other questions:
  • Glycerol (C3H8O3), also called glycerine, is widely used in the food and pharmaceutical industries. Glycerol is polar and dissol
    6·1 answer
  • What element is found in group 5 period 3?
    6·1 answer
  • What does water taste of? Don't say nothing everything has a taste!
    8·2 answers
  • Bowling with a volleyball instead of a bowling ball. Will this make it easier or harder to knock over pins?
    10·1 answer
  • Carbon monoxide and chlorine gas react to form phosgene:
    13·1 answer
  • IF YOU ARE MR.BEAST FAN ANSWER THIS. What do waves transfer?
    12·2 answers
  • Iron is a mineral. A nail made out of iron <br> a mineral.<br><br> Answers:<br> Is also<br> Is not
    8·2 answers
  • A solution of HCl with a volume of 25.00 mL is titrated to the endpoint, with 0.250 M
    13·1 answer
  • Why are fingertips wet with saliva before counting money?​
    11·1 answer
  • An unknown compound has the following chemical formula: NO_x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!