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
Semenov [28]
3 years ago
7

Please answer this(science)

Chemistry
1 answer:
Mandarinka [93]3 years ago
7 0
The first one would be using solar systems


You might be interested in
What purpose do each of the following play in the isolation and purification of ethyl 3- hydroxybutanoate?
Shalnov [3]

Explanation:

-Filter help — delete some big unreacted, undesirable species (norit is probably from what you are sorting through, its only carbon which cleans up things)

— extract with DCM because you are probably in an aqueous phase, and some butanoate is in it

- Anhydrous sodium absorbs excess of  water (dries the material)

-evaporation in the hood to clear the DCM and crystallize the product.

8 0
3 years ago
Given the noble gas configuration of an element: [Ar] 4s2, 3d5, what is the element?
monitta

Question

<em>Given the noble gas configuration of an element: [Ar] 4s2, 3d5, what is the element? </em>

Answer:

<em>B.) Argon</em>

Hope this helps!

6 0
3 years ago
Draw the major organic substitution product(s) for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate
Ede4ka [16]

Answer:

The final product of the reaction is (<em>2S,3S</em>)-2-ethoxy-3-methylpentane.

Explanation:

The given reaction undergoes S_{N}2  mechanism in which the nucleophile attacks the backside and it is substituted by the elimination of bromine.

Due to the backside attack of nucleophile , the inverse in stereo-chemistry is observed.

After the substitution of ethoxy group, the configuration is assigned according to the priority it shows clock wise direction(R) - configuration.

When hydrogen faces the front side , it results shows inverse configuration i.e, S- configuration.

The chemical reaction is as follows.

 

6 0
3 years ago
What is the main function of burette?
Tasya [4]

Answer:

I  think it A

Explanation:

5 0
3 years ago
Read 2 more answers
an atom of chlorine has an amount number of 17 and a mass number of 37. how many protons neutrons, and electrons are in the atom
Soloha48 [4]

Answer: There are 20 protons neutrons in the atom

6 0
2 years ago
Other questions:
  • How is chemistry relevant outside the chemistry lab
    6·1 answer
  • If 27.1 g of ar(g) occupies a volume of 4.21 l, what volume will 1.29 moles of ne(g) occupy at the same temperature and pressure
    10·2 answers
  • A statement that best describes a solution
    7·1 answer
  • How does the smell of food being cooked spread so fast ???
    7·2 answers
  • 1. A sealed 2500mL flask is filled to capacity with 163g of a slimy green liquid. What is the density of the liquid?
    14·2 answers
  • Viscous a chemical or physical property
    7·1 answer
  • What Happens When Stress builds faults? O Energy is Absorbed O Rock can bend and break O Plates form on the lithosphere O Earthq
    5·2 answers
  • nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
    8·1 answer
  • What is the Lewis dot diagram structure for PI2F
    13·1 answer
  • Make propanoic anhydride from Formaldehyde
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!