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Dima020 [189]
4 years ago
15

The largest number from among the following is:

Chemistry
2 answers:
Ilia_Sergeevich [38]4 years ago
7 0
It is true that <span>A. 1.80 x 10-2 is the correct answer because

</span><span>1.80 x 10-2 =.00180
1.80 x 10-4 </span>=.0000180
1.80 x 10-6 =.000000180
1.80 x 10-8 =.00000000180<span>

</span>
Alik [6]4 years ago
6 0
The answer would be a) 1.80 x 10-2
You might be interested in
476 nm = [? ]10<br>cm<br>give your answer in scientific notation.
KatRina [158]

1nm=10^-6 cm.

476 nm = 4.76E-5 cm

6 0
3 years ago
For which of the following reactions is S° &gt; 0.
lisabon 2012 [21]

The entropy of the given reactions increases (S° > 0):

  • 2C2H6(g) + 7O2(g) ----> 4CO2(g) + 6H2O(g) ---> S° > 0.
  • NH4Cl(s) ----> NH3(g) + HCl(g) ---> S° > 0.

<h3>What is entropy?</h3>

Entropy measure how disordered a system is. It a measure of how dispersed or random the total energy of a system is. The symbol for entropy is S.

A system in which entropy increases is one in which S° > 0.

The entropy of a system decreases when S° < 0.

Entropy of a system increases (S° > 0) if any change results in an increase in temperature, increase in number of molecules, or an increase in volume.

Considering the given systems, the entropy changes is as follows:

  • 2C2H6(g) + 7O2(g) ----> 4CO2(g) + 6H2O(g) ---> S° > 0.
  • 2CO2(g) + N2(g) ---->2CO(g) + 2NO(g) --> no change
  • 2N2(g) + O2(g) -----> 2N2O(g)  ---> decreases
  • S (s,rhombic) + 2CO(g) ----> SO2(g) + 2C (s,graphite) ---> no change
  • NH4Cl(s) ----> NH3(g) + HCl(g) ---> S° > 0.

In conclusion, an increase in volume and moles of substances results in entropy increase.

Learn more about entropy at: brainly.com/question/26691503

#SPJ1

8 0
2 years ago
2.5 moles of sodium chloride is dissolved<br> to make 0.050 liters of solution.
ivanzaharov [21]

The answer is:

the molarity = 50 moles/liters

The explanation:

when the molarity is = the number of moles / volume per liters.

and when the number of moles =2.5 moles

and the volume per liters = 0.05 L

so by substitution:

the molarity = 2.5moles/0.05L

                    = 50 moles /L

MARK ME BRAINLIEST PLEASE!!!!!!!!!

3 0
4 years ago
Which of the following are 'natural polymers
aliya0001 [1]
Mark Brainliest please

Answer

Proteins

Cellulose
And Silk

Explaination

There are two types of polymers: synthetic and natural.

Synthetic polymers are derived from petroleum oil and made by scientists and engineers. Examples of synthetic polymers include nylon, polyethene, polyester, Teflon, and epoxy.

Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely produced synthetic plastic polymer.

Natural polymers occur in nature and can be extracted. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins and rubber.
7 0
3 years ago
What is the nervous system?
malfutka [58]

Answer:The nervous system or the neural system is a complex network of neurons specialized to carry messages. The complexity of the nervous system increases as we move towards higher animals.

Explanation:

7 0
3 years ago
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