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zubka84 [21]
3 years ago
13

Need this less than 4 minutes!! In which step do we see the chromosomes condense and meet up to form homologous pair?

Chemistry
1 answer:
nataly862011 [7]3 years ago
3 0

Answer:

Prophase I

Sorry if wrong I was rushing !!

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Can somebody please match the numbers?
valina [46]

Answer:

1. volcano

4. glaciers

Explanation:

this isnt really helpful but there is 2 sorryy

5 0
3 years ago
Read 2 more answers
The boiling point of ethanol is 78.4 °C, and the enthalpy change for the conversion of liquid to vapor is ΔHvap = 38.56 kJ/mol.
Lady_Fox [76]

Explanation:

The given data is as follows.

    Enthalpy of vaporization, \Delta H_{vap} = 38.56 kJ/mol

    Temperature (T) = 78.4^{o}C

                                = (78.4 + 273) K

                                = 351.4 K

Now, we will calculate the change in entropy using the formula as follows.

           \Delta H_{vap} = T \Delta S_{vap}

           \Delta S_{vap} = \frac{\Delta H_{vap}}{T}

                       = \frac{38.56 kJ/mol}{351.4 K}

                       = 0.109 kJ/mol K

Thus, w ecan conclude that the entropy change for vaporization is 0.109 kJ/mol K.

3 0
4 years ago
What type of central-atom orbital hybridization corresponds to each electron-group arrangement:
galina1969 [7]

Tetrahedral arrangement is resulted upon mixing one s and three p atomic orbitals, resulting in 4 hybridized sp^3 orbitals → sp^3 hybridization.

<h3>What is orbital hybridization?</h3>

In the context of valence bond theory, orbital hybridization (or hybridisation) refers to the idea of combining atomic orbitals to create new hybrid orbitals (with energies, forms, etc., distinct from the component atomic orbitals) suited for the pairing of electrons to form chemical bonds.

For instance, the valence-shell s orbital joins with three valence-shell p orbitals to generate four equivalent sp3 mixes that are arranged in a tetrahedral configuration around the carbon atom to connect to four distinct atoms.

Hybrid orbitals are symmetrically arranged in space and are helpful in the explanation of molecular geometry and atomic bonding characteristics. Usually, atomic orbitals with similar energies are combined to form hybrid orbitals.

Learn more about Hybridization

brainly.com/question/22765530

#SPJ4

3 0
2 years ago
Which chemical equation correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammo
Dima020 [189]

Answer:

D. 2NH₃(g) ⟶ N₂(g) + 3H₂(g)

Explanation:

A chemical equation must show the correct formulas for reactants and products.

A and B are wrong, because they have NH₃ as a product.

C is wrong. H₃ does not exist.

A is correct. The equation for the decomposition of ammonia is

2NH₃(g) ⟶ N₂(g) + 3H₂(g)

5 0
4 years ago
I’m not good at chemistry
dimulka [17.4K]

Answer:

λ = 5.56 × 10⁻³ m

Explanation:

You have to use the formula c = λv to solve the problem.  Review what you are given.  You are given v and c, where v = 5.40 × 10¹⁰ Hz and c = 3.00 × 10⁸ m/s.  The value c is for the speed of light and is something you need to memorize.  You will use it often in physics and sometimes in chemistry.

Now that you figured out what you know, you can see that there is only one unknown, allowing you to solve.

c = λv

λ = c/v

λ = (3.00 × 10⁸ m/s)/(5.40 × 10¹⁰ Hz)

λ = 5.56 × 10⁻³ m

5 0
3 years ago
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