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2 years ago

During which phase of mitosis does the cell begin to split into two daughter cells

Chemistry

2 answers:

sammy [17]2 years ago

6 0

Answer:

Telophase

Explanation:

Telophase is the last phase of mitosis. More specifically 'cytokinesis' is the division of cytoplasm and cell into two. Thus it can be included in the telophase stage as well.

artcher [175]2 years ago

3 0

Answer:

$\text{Telophase}$

Explanation:

Telophase is the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells.

$-TheAnimeGirl-$

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The relative atomic mass of hydrogen is Ar (H) = 1008.Calculate the absolute mass of a hydrogen atom

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Answer:

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Explanation:

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2 years ago

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2 years ago

Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate

Anvisha [2.4K]

Answer:

$-3272$ kJ/mol

Explanation:

Given and known facts

Mass of Benzene $= 0.187$ grams

Mass of water $= 250$ grams

Standard heat capacity of water $= 4.18$ J/g∙°C

Change in temperature ΔT $= 7.48$ °C

Heat

$=250 * 4.18 * 7.48\\=7816.6 \\=7.82$

Heat released by benzine is - 7.82 kJ

Now, we know that

$0.187$ grams of benzene release $= -7.82$ kJ heat

So, $1$ g benzine releases

$\frac{ -7.82 }{0.187}\\= -41.8$

kJ/g

$0.187 * \frac{1}{78.108}=0.00239$ mol C6H6

Heat released

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$=-3272$ kJ/mol

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3 years ago

1. Calculate how many moles of glycine are in a 130.0-g sample of glycine.2. Calculate the percent nitrogen by mass in glycine.

Alexxx [7]

Answer:

$n=1.732mol$

$\% N=18.7\%$

Explanation:

Hello!

In this case, since the molecular formula of glycine is C₂H₅NO₂, we realize that the molar mass is 75.07 g/mol; thus, the moles in 130.0 g of glycine are:

$n=130.0g*\frac{1mol}{75.07 g}\\\\ n=1.732mol$

Furthermore, we can notice 75.07 grams of glycine contains 14.01 grams of nitrogen; thus, the percent nitrogen turns out:

$\% N=\frac{14.01}{75.07}*100\% \\\\\% N=18.7\%$

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3 years ago

Which isotope will spontaneously decay and emit particles with a charge of +2?

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(4) 220Fr, known as Francium-220, undergoes alpha decay, which emits an alpha particle, also known as a helium nucleus, which has a charge of +2.

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3 years ago