3 years ago

What helps skin repair itself after it is cut?

Chemistry

2 answers:

Virty [35]3 years ago

5 0

Answer:

The answer is mitosis.

Explanation:

NNADVOKAT [17]3 years ago

4 0

Mitosis is what helps the skin repair itself after getting damaged.

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Which substance is a diatoic molecule? A] He B] O2 C] CO2 D] H2O

PilotLPTM [1.2K]

The substance that is a diatomic molecule is B. O2 Oxygen.

6 0

3 years ago

At 570. mm Hg and 25°C, a gas sample ne (in mm Hg) at a volume of 1250 mL and a temperature of 175°C and 25°C, a gas sample has

maw [93]

Answer:

final pressure ( P2) = 467.37 mm Hg

Explanation:

ideal gas:

PV = nRT

∴ P1 = 570 mm Hg * ( atm / 760 mm Hg ) = 0.75 atm

∴ T1 = 25 ° C = 298 K

∴ V1 = 1.250 L

∴ R = 0.082 atm L / K mol

⇒ n = P1*V1 / R*T1

⇒ n = (( 0.75 ) * ( 1.25 )) / (( 0.082 ) * ( 298 ))

⇒ n = 0.038 mol gas

∴ T2 = 175 °C ( 448 K )

∴ V2 = 2.270 L

⇒ P2 = nRT2 / V2

⇒ P2 = (( 0.038 ) * ( 0.082 ) * ( 448 )) / 2.270

⇒ P2 = 0.615 atm * ( 760 mm Hg / atm ) = 467.37 mm Hg

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3 years ago

Fix the formula for KF2 Write out the full correct formula?

Korvikt [17]

Given :

A chemical compound $KF_2$ .

To Find :

Fix the formula for $KF_2$ and write the full correct formula.

Solution :

We know, Potassium( K ) and Fluorine( F ) both have a valency of 1 i.e potassium can donate one electron and Fluorine can accept one electron only.

So, the chemical formula $KF_2$ is wrong because no element has filled electron.

Therefore, to stabilise the molecule, 1 Potassium atom should make a bond from 1 Fluorine i.e KF ( correct formula ) .

Hence, this is the required solution.

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3 years ago

What does a plant produce during photosynthesis? A. Oxygen and glucose B. Carbohydrates and carbon C. Carbon, oxygen, and hydrog

Nataliya [291]

Answer:

im pretty sure b

Explanation:

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4 years ago

The heat from the bonfire is transferred to the student's hands through the process of

Agata [3.3K]

Answer:

Radiation

Explanation:

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2 years ago