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Delvig [45]
3 years ago
8

What helps skin repair itself after it is cut?

Chemistry
2 answers:
julsineya [31]3 years ago
8 0

The answer is <u>A</u>, I hope this helps :D

vesna_86 [32]3 years ago
7 0
A.

When you cut your skin the cells at the edge of the injury are stimulated to divide rapidly.

I hope this helps
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Name a type of asteroid and give a description.
IceJOKER [234]

Answer:

S-type or silaceous asteroids are made up primarily of stony materials and nickel-iron. They inhabit the inner Asteroid Belt. M-type, or metallic, are made up mostly of nickel-iron, and are found in the middle region of the Asteroid Belt

Explanation:

3 0
4 years ago
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Write the balanced equation for the reaction between HCl and NaOH. Then, calculate the molarity of the NaOH.
andre [41]

Answer:

HCl (aq) + NaOH (aq) --> H2O (L) + NaCl (aq)

Explanation:

HCl is a strong acid while NaOH is a strong alkali. Hence both should dissociate completely in water and 1 mol of HCl will fully neutralise 1 mol of NaOH.

I'm assuming that Part 2 on molarity is part of a data based question that requires you to calculate the number of moles of NaOH based on the data provided and the equation that you are required to balance. Hence, I can't help you with it as I do not have the values.

5 0
3 years ago
The a-helices and b- sheets in protein make up its
Marta_Voda [28]
Alpha helix and beta sheets are the secondary structure of protein
5 0
4 years ago
Which reaction best represents the complete combustion of ethane?
baherus [9]
Answer:

Combustion reaction

2C2H6+7O2 → 4O2+6H2O

Explanation:

In a combustion reaction with a hydrocarbon in the reactant side you will always have O2 as another reactant. As you will always have CO2 and H2O as the products.

Knowing that much you can set up your reaction equation..

C2H6+O2→ CO2+H2O

Now the balancing can begin. Balancing hydrocarbon combustion reactions can be tricky, but if with practice they can be really fun and very rewarding.

Start with the C atoms first and move to the H atoms next. It's easier to leave the O2 to the last, it has a way to alter the equation.

Initially, you would arrive at this, before the O2 has been balanced:

C2H6+O2→2CO2+3H2O

But, as you can see, you have an odd amount of O2 on the product side. In this case, you have to find the common factor of the amount of O on the product side and 2, Because of the O2 diatom. Therefore, 14 would be the lowest common factor of 2 and 7.

I hope it helped you!
6 0
4 years ago
Read 2 more answers
After DNA is duplicated, what is it called? What does it look like?
Rom4ik [11]

Answer:

Following DNA replication, the chromosome consists of two identical structures called (sister chromatids), which are joined at the centromere.

5 0
3 years ago
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