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4 years ago

Please answer this skskskskskksmsk

Chemistry

1 answer:

Sveta_85 [38]4 years ago

4 0

Answer:see attached photo for answer

Explanation:cell division occurs to produce new cells from preexisting ones. the new cells are called daughter cells.the old cells are called parent cells.cell division may be mitosis or meiosis. Mitosis occurs in a somatic cell and produce four daughter cell. Meiosis occurs in sex cells and produce two daughter cells. Cell division usually involves Prophase, metaphase, anaphase and telophase.

Cell division occurs to ensure the continous existence of life.

Mitosis involve producing daughter cells with the same number of chromosomes as the parent cells while meiosis involves producing daughter cells with Half number of chromosomes.

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What mineral is this? Egg-sized piece. Transparent pink color with glassy luster. Shows conchoidal fracture. The hardness is 7.

fgiga [73]

ruby

Explanation:

because it's ruby

8 0

3 years ago

Read 2 more answers

What does Hund's rule state?

telo118 [61]

Answer:

Explanation:

Hund's Rule of Maximum Multiplicity states that electrons go into degenerate orbitals of sub-orbitals(p, d and f) singly before pairing commences.

Hund's rule is useful in determining the number of unpaired electrons in an atom. Hence, it explains some of the magnetic properties of elements.

An element whose atoms or molecules contain unpaired electrons is paramagnetic.

The element whose atoms or molecules contain orbitals that are all filed up with paired electron is diamagnetic.

5 0

4 years ago

A sample of fluorine gas occupies 810 milliliters at 270 K and 1.00 atm. What volume does the gas occupy when the pressure is do

sertanlavr [38]

Answer:

The answer to your question is Volume = 600 ml

Explanation:

Data

Volume 1 = 810 ml

Temperature 1 = 270°K

Pressure 1 = 1 atm

Volume 2 = ?

Pressure = 2 atm

Temperature 2 = 400°K

Process

1.- To solve this problem, use the Combine gas law.

P1V1 / T1 = P2V2 / T2

- Solve for V2

V2 = P1V1T2 / T1P2

2.- Substitution

V2 = (1)(810)(400) / (270)(2)

3.- Simplification

V2 = 324000 / 540

4.- Result

V2 = 600 ml

8 0

3 years ago

Read 2 more answers

A throat spray is 1.40% by mass Phenol, C6H5OH in water. If the solution has a density of 0.9956 g/ml, calculate the molarity of

myrzilka [38]

<u>Answer:</u> The molarity of solution is 1.08 M

<u>Explanation:</u>

We are given:

(m/m) of phenol = 1.40 %

This means that 1.40 g of phenol is present in 100 g of solution.

To calculate volume of solution, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of solution = 0.9956 g/mL

Mass of solution = 100 g

Putting values in above equation, we get:

$0.9956g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=100.442mL$

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Mass of solute (phenol) = 1.40 g

Molar mass of phenol = 94.11 g/mol

Volume of solution = 100.442 mL

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{1.40g\times 1000}{94.11g/mol\times 100.442mL}\\\\\text{Molarity of solution}=0.15M$

Hence, the molarity of solution is 0.15 M

8 0

3 years ago

for each of the following describe the relationship as directly or inversely proportional: wavelength vs frequency, wavelength v

Virty [35]

Wavelength is inversely related with frequency: wavelength = V / frequency or wavelength * frequency = V

Energy is directly proportional to frequency: Energy = h * frequency

Then, Energy is inversely related to wavelength:

Energy = h* V / wavelength => Energy * wavelength = h*V

8 0

3 years ago