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ycow [4]
3 years ago
9

I am a student of chemistry. You can ask me questions in chemistry​

Chemistry
1 answer:
Maksim231197 [3]3 years ago
8 0

Answer:

what happens if i mix red with green?

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Describe the major advantages and disadvantages of asexual and sexual reproduction.
Fynjy0 [20]

Answer:

Allows for a quick "doubling of population because they skip pollination and fertilisation. There is less energy required for asexual reproduction. Large colonies can form that out complete the other organisms for nutrients and water. ... Sexual reproduction leads to genetic variation in new generations of offspring.

Explanation:

3 0
2 years ago
Given the following electronic configurations, identify how many valence electrons each atom has.
ololo11 [35]

Answer : Valence electrons in atom A = 1, B = 6 and C = 2.

Explanation :

Valence electrons means the outermost electrons are the ones which involved in bonding. Electrons are arranged in energy levels or shells.

Valence electrons are found in the highest energy orbitals of an element.

  • The electronic configuration of (Na) is 1s^22s^22p^63s^1. The highest energy orbital is 3s orbital which contains 1 electron. So,

        The number of valence electrons in (Na) = A = 1

Similarly,

  • The electronic configuration of (O) is 1s^22s^22p^4. The highest energy orbital are 2s and 2p orbitals which contains (2 + 4) = 6 electrons. So,

       The number of valence electrons in (O) = B = 6

  • The electronic configuration of (Fe) is 1s^22s^22p^63s^23p^64s^23d^6. The highest energy orbital is 4s orbital which contains 2 electrons. So,

       The number of valence electrons in (Fe) = C = 2

4 0
3 years ago
Read 2 more answers
A 10 kg bicycle is rolling down a hill at 5 m/s, what is its momentum?
Yakvenalex [24]

Answer:

<h2>50 kg.m/s</h2>

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 10 × 5

We have the final answer as

<h3>50 kg.m/s</h3>

Hope this helps you

4 0
3 years ago
The fermentation of glucose (C6H12O6) produces ethyl alcohol (C2H5OH) and CO2:
Jlenok [28]
To answer your question I will use dimensional analysis, which is used by cancelling out the units. I will also use the balanced equation provided as a conversion factor.

A) First start out with the 0.300 mol of C6H12O6...
0.300 mol C6H12O6 * (2 mol CO2 / 1 mol C6H12O6) = 0.600 mol CO2

*The significant figures (sig figs) at still three, the 2 is a conversion counting number and does not count*

B) First change 2.00 g of C2H5OH to moles of C2H5OH...
The molecular mass of C2H5OH is...
2(12.01 g/mol) + 5(1.008 g/mol) + 16.00 g/mol + 1.008 g/mol = 46.07 g/mol
This can be used as a conversion factor to change grams to moles. 
2.00 g C2H5OH * (1 mol C2H5OH / 46.07 g C2H5OH) = 0.0434 mol C2H5OH

Second, you can change the moles of C2H5OH to moles of C6H12O6..
0.0434 mol C2H5OH * (1 mol C6H12O6 / 2 mol C6H12O6) = 0.0217 mol C6H12O6

Third, change moles of C6H12O6 to grams...
MM = 6(12.01 g/mol) + 12(1.008 g/mol) + 6(16.00 g/mol) = 180.16 g/mol
0.0217 mol C6H12O6 * (180.16 g C6H12O6 / 1 mol C6H12O6) = 3.91 g C6H12O6

C) Now I am going to put it all into one long dimensional analysis problem.
MM of CO2 = 44.01 g/mol
MM of C2H5OH = 46.07 g/mol

2.00 g C2H5OH * (1 mol C2H5OH / 46.07 g C2H5OH) * (2 mol CO2 / 2 mol C2H5OH) * (44.01 g CO2 / 1 mol CO2) = 1.91 g CO2

I hope this helped and I am sorry that I talked to much, I just didn't want to miss anything!
3 0
3 years ago
Need help answering the question at the bottom of the text
Rasek [7]

Answer:

You Need to put in the picture

Explanation:

I cant see it

7 0
3 years ago
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