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Marianna [84]
1 year ago
8

Could the cuttlefish tell the difference between the blue and yellow in the lab?​

Chemistry
1 answer:
jeka941 year ago
5 0

Answer:

<em>yes</em>

Explanation:

the cuttle fish tell the difference between blue and yellow

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Explain the relationship between mutations, adaptations, natural selection, and extinction.
Masja [62]

Answer:

They all need to use each other to function?

Explanation:

Natural selection are positive traits, mutation is radioactive, and adaption is when natural selection works.

8 0
3 years ago
Read 2 more answers
A weight of 22.25g was obtained when 10-mL of water at 27C was pipet to empty Erlenmeyer flask. What is the volume delivered by
Nimfa-mama [501]

Answer:

the volume delivered by the pipette = 22.32 mL

Explanation:

To calculate this, let us first note that the density of water relates it weight and its volume (density = mass ÷ volume), hence we are going to use density to determine the volume.

Density of water = mass/volume = 0.997 g/ mL

mass = 22.25g

Density = 0.997g/mL

volume = ?

density = \frac{mass}{volume}\\\therefore volume = \frac{mass}{density}\\volume = \frac{22.25}{0.997}\\volume =  22.32\ mL

∴ the volume delivered by the pipette = 22.32 mL

<em>Please note that this calculation is based on the fact that the weight of the empty flask has been determined and canceled out.</em>

4 0
3 years ago
I need help completing this flowchart on separating a mixture of sand, sodium chloride, and acetanilide
kolezko [41]

The key to most "how do I separate." questions is solubility.

The trick is to add a liquid that will only dissolve one substance but not another.

Let's say you had a beaker full of sand, table salt (NaCl), and acetanilide. Is there anything you can add that would only dissolve one of these three substances?

Yes, there is! Acetanilide like most organic compounds, isn't soluble in water. But salt is soluble in water. So to the mixture, I would add water, and then pass the water through a filter. The filter paper will "catch" the sand and acetanilide, but the table salt will remain dissolved in the water. If you then let that water evaporate (either via boiling or under vacuum), you will recover your salt.

So now, how to do you separate the sand from the acetanilide? Sand isn't really soluble in anything, but acetanilide is soluble in organic solvents, such as ethanol. So to the mixture of sand and acetanilide, add ethanol, and pass it through a filter. The sand will once again get stuck in the filter paper, and your acetanilide will be dissolved in ethanol. Remove the ethanol (via vacuum, or rotovap) and you will be left with acetanilide.

6 0
3 years ago
Trey runs 80 meters to the north in 20 seconds. what is his velocity
Aleks [24]

Answer:

4 North

Explanation: 80 North / 20 Sec = 4 North

Plz give me brainliest, I need to level up.

8 0
3 years ago
What is the formula of sodium bicarbonate?​
expeople1 [14]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ It is NaHCO3

<h3>✽</h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
3 years ago
Read 2 more answers
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