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Olenka [21]
3 years ago
11

When a buffalo egg and sperm unite, a fertilized egg with 60 chromosomes is produced. How many chromosomes do the egg and sperm

have before fertilization?
A. The egg and sperm each have 30 chromosomes, because the fertilized egg receives one set of chromosomes from each parent.

B. The egg has 20 chromosomes and the sperm has 10, because eggs are larger and therefore provide more chromosomes during fertilization.

C. The egg has 40 chromosomes and the sperm has 20, because eggs are larger and therefore provide more chromosomes during fertilization.

D. The egg and sperm each have 60 chromosomes, because the fertilized egg has the same number of chromosomes as all the cells of an organism.
Chemistry
1 answer:
Basile [38]3 years ago
8 0
Your answer would be A
hope this helps :3
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Which graph represents what happens to the solubility of baco3 as hno3 is added?
slavikrds [6]
If we have in mind the following procedure:
BACo3(s) + H +1  -> Ba +2  + HCO3 -1
CO3 - 2 + H+1 -> HCO3  -1 
As nitric acid is added then {CO3 -2 } decreases meaning that more BaCo3 can dissolve. The graph you need to use is the one that the curve goes down and closer to solubility and goes up on conc. 
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Which of the following is true about the law of consevation<br>​
Mkey [24]

Answer:

just look it up

Explanation:

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Nitrobenzene contains 5 hydrogen atoms, 6 carbon atoms, 2 oxygen atoms, and 1 nitrogen atom. what is the chemical formula for ni
ollegr [7]

C₆H₅NO₂

<h3>Further explanation</h3>

Nitrobenzene contains:

  • 5 hydrogen atoms,
  • 6 carbon atoms,
  • 2 oxygen atoms, and
  • 1 nitrogen atom.

The chemical formula for nitrobenzene is C₆H₅NO₂.

Nitrobenzene is one of benzene derivatives, precisely including the type of monosubstituted benzenes.

The molecular structure of phenyl  \boxed{ \ C_6H_5- \ } is formed by removing one H atom from the benzene \boxed{ \ C_6H_6 \ } molecule. A substituent is bound to the C atom which loses the H atom so it is called monosubstituted benzene.

In the naming of monosubstituted benzenes, benzene is the parent name and the substituent is indicated by a prefix.

  • nitro is the substituent
  • benzene is the parent name

When benzene is reacted with a mixture of concentrated nitric acid and concentrated sulfuric acid, it yields nitrobenzene.

\boxed{ \ C_6H_6 + HNO_2 \ (with \ H_2SO_4 \ in \ 30^0C-40^0C) \rightarrow C_6H_5NO_2 + H_2O}

- - - - - - -

<u>Notes:</u>

  • Benzene and compounds having similar chemical properties to benzene are called aromatic compounds.
  • Benzene is a colorless, poisonous liquid with a specific odor. it dissolves in organic solvents in organic solvents such as alcohol, ether, and acetic acid. Benzene is also good for non-polar substances.
  • Nitrobenzene is used in the manufacture of aniline and other organic chemicals. Nitrobenzene is a pale yellow, oily, and highly toxic liquid with the odor of bitter almonds.
<h3>Learn more</h3>
  1. Calculating the pH value of weak base brainly.com/question/9040743
  2. About the solution as a homogeneous mixture  brainly.com/question/637791
  3. About the mass and density of substances  brainly.com/question/4053884

Keywords: nitrobenzene, contains, 5 hydrogen atoms, 6 carbon, 2 oxygen, and 1 nitrogen. the chemical formula, benzene, monosaturated, phenyl, aromatic compounds

7 0
3 years ago
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How many distinct and degenerate p orbitals exist in the second electron shell, where n = 2?
viktelen [127]

Answer: 3 degenerate orbitals are obtained

Explanation:

The p orbital can house a maximum of 6 electrons splitting the degenerate orbital into 3 and having each contain a maximum of 2 electrons each

8 0
3 years ago
3. A 650 mg sample is analyzed and found to contain
JulsSmile [24]

Answer:

7.85% of Hydrogen in the sample.

Explanation:

51/650 = .07846  x 100= 7.846% (round up)

6 0
4 years ago
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