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3 years ago

In Mitosis, do new cells have different DNA or the same DNA?

1 answer:

5 0

Answer: With few exceptions, the mitotic process ensures that this is the case. Therefore, mitosis ensures that each successive cellular generation has the same genetic composition as the previous generation, as well as an identical chromosome set.

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What is an electrolytic cell?

Verizon [17]

Answer:

Hey mate here is your answer in short

Explanation:

An electrolytic cell uses electrical energy to drive a non-spontaneous redox reaction. An electrolytic cell is a kind of electrochemical cell. It is often used to decompose chemical compounds, in a process called electrolysis—the Greek word lysis means to break up.

hope it helps you ❣️

4 0

3 years ago

Read 2 more answers

Koi mera aake chus lo Aur heela bhi do

Svet_ta [14]

Answer:

what

Explanation:

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4 years ago

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A 10.0 mL sample of 0.75 M CH3CH2COOH(aq) is titrated with 0.30 M NaOH(aq) (adding NaOH to CH3CH2COOH). Determine which region o

Llana [10]

Answer:

5.75

Explanation:

Weak acid and strong base,

Make it a two part problem

The first will be Partial neutralization of the weak acid, while the second is the equilibrium and final pH

1.Parameters

HC2H3O2 =10mL x 0.75M = 7.5 mmol

NaOH =22mL x 0.30M = 6.6 mmol

R HC2H3O2 + OH- --> C2H3O2- + H2O

I 7.5 mmol 6.6 mmol 0 mmol ignore

C -6.6 mmol -6.6 mmol +6.6 mmol

E 0.9 mmol 0.0 mmol 6.6 mmol

2.) HC2H3O2 --> H+ + C2H3O2-

Initial concentrations

[HC2H3O2]: 0.9 mmol / 32mL = 0.0281M

[H+]:

[C2H3O2-]: 6.6 mmol x 32mL = 0.206M

Concentrations at equilibrium

[HC2H3O2]: 0.0281M - x

[H+]: [C2H3O2-]: 0.206M + x

If x is small and can be ignored except [H+]

Substitute and solve

1.3 x 10-5 = (x)(0.206)

(0.0281)

X= 1.77 x 10-6M => pH = 5.75

3 0

3 years ago

What does the number 84 in the name krypton-84 represent

Marysya12 [62]

Mass number ........ ...

8 0

3 years ago

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13.What volume of hydrogen gas is produced when 92.4 g of sodium reacts completely according to the following reaction at 25 °C

Anastaziya [24]

Answer:

44.8L of hydrogen gas

Explanation:

The reaction expression is given as:

2Na + 2H₂O → 2NaOH + H₂

Given parameters:

Mass of sodium = 92.4g

Unknown:

Volume of hydrogen gas = ?

Solution:

To solve this problem:

1 mole of a substance at STP occupies a volume of 22.4L

Let us find the number of moles of the hydrogen gas;

Number of moles of Na = $\frac{mass}{molar mass}$

Molar mass of Na = 23g/mol

Number of moles = $\frac{92.4}{23}$ = 4.02mole

From the balanced reaction expression:

2 mole of Na will produce 1 mole of hydrogen gas

4.02 mole of Na will produce $\frac{4.02}{2}$ = 2mole of hydrogen gas

1 mole of a substance at STP occupies a volume of 22.4L

2 mole of hydrogen gas will occupy a volume of 2 x 22.4 = 44.8L of hydrogen gas

5 0

3 years ago