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fomenos
3 years ago
13

Using the electronegativity values in the chart below, which bond is the most polar?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

C-O

Explanation:

you have to check the all four bonds and find out their electronegativity difference. Whichever has the largest difference, is your answer.

  1. N-O = 3.04 - 3.44 = -0.4
  2. Cl-Cl = 3.16 -3.16 = 0
  3. C-O = 3.44 -  2.55 = 0.89
  4. C-H = 2.55 - 2.20= 0.35

Now check the differences, the largest electronegativity differences means the most polar bond

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Why is radioactive decay considered an exponential process
netineya [11]

Answer:

It breaks down in mathematically exponential way.

Explanation:

For example if you have 100 grams, after the first decay, its 50. Then 25. Then 12.5, and so on. Rather than, say, 5 grams being subtracted every cycle, it is dilated by the factor of a fraction, making it exponential.

3 0
3 years ago
When doing an extraction, a student mixes 50 mL of 0.40 M benzoic acid (MW = 122 g/mole) with 30 mL of dichlormethane. After sep
Margarita [4]

Answer:

A. 2.44g

B. Kd = 3.2

Explanation:

Concentration of benzoic acid = 50mL = 0.05L

Molecular weight = 122 g/mol

Moles of benzoic acid before the extraction = mass/molecular weight of Benzoic acid

= molar concentration * volume

Moles of benzoic acid before the extraction = 0.05 * 0.4

= 0.02moles of benzoic acid before extraction.

Mass of benzoic acid = 0.02 * 122

= 2.44 g

Partition coefficient, Kd is defined as the ratio of concentration of a substance in an organic medium to the concentration of the substance in the aqueous medium.

Since 1.22g of Benzoic acid was in Dicholoroethane, therefore (2.44 - 1.22)g of benzoic acid was in water.

Mass concentration of benzoic acid in water = mass of benzoic in water/volume of water

= 1.22/0.05

= 24.4 g/L

Mass concentration of benzoic acid in Dicholoroethane = mass of benzoic in Dicholoroethane/volume of Dicholoroethane

= 1.22/0.03

= 40.67g/L

Kd = [concentration]organic/[concentration]aqueous

= 40.66/24.4

= 1.67

7 0
4 years ago
What is the name of a mixture that is easily seen and separated???
DedPeter [7]

Answer:

suspension

Explanation:

a mixture in which particles can be seen and easily separated by settling or filtration.

hope this helps

4 0
2 years ago
Read 2 more answers
Fossil A is estimated to be 5,000 years old and fossil B is estimated to be 2,000 year old. If the two fossils had the same amou
elena-14-01-66 [18.8K]

The new fossil i.e, Fossil B (2,000 year old) contains more carbon-14 than the old fossil i.e, Fossil A (5,000 years old ) does.

<h3>What are Fossils ?</h3>

Fossils are the preserved left materials of ancient organisms in trace form.

Fossils are not just the remains of the organism But also the rocks.

Carbon 14 works to analyse the period organic remains that are between 100 years old (minimum) and about 50,000 years old, (maximum).

If it is new, than not enough time has passed for radioactive decay to produce and if it is older than that, the amount of radioactive decay has dropped so less amount which means that anything beyond 50,000 years old becomes gibberish and may lead to high or low (usually low) concentration.

Hence,the new fossil Fossil B (2,000 year old) contains more carbon-14 than the older Fossil A (5,000 years old ) does.

Learn more about Fossil here ;

brainly.com/question/19676397

#SPJ1

7 0
2 years ago
The metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. Wh
Alchen [17]

Answer:

c

Explanation:

3 0
3 years ago
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