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mihalych1998 [28]
3 years ago
7

Is the following statement a qualitative or quantitative observation?

Chemistry
2 answers:
Solnce55 [7]3 years ago
5 0
I think qualitative
lbvjy [14]3 years ago
3 0

Answer:

I'd say Qualitative

Explanation:

Qualitative is based off of our 5 senses which we all know is; see, hear, taste, smell, and feel.

In this case the person said "The cat video is 5 minutes and 35 seconds long." They saw how long it was, key word saw. Seeing something is see, so she/he used their senses to find out it's 5 minutes, 35 seconds long.

If possible brainiest please?

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In the video, the semipermeable membrane separates the two solutions of different concentrations. Watch the video and identify w
Zanzabum

Explanation:

A and D

A. A pressure equal to that of the osmotic pressure will result in reverse osmosis.

D. The movement of the solvent particles from the concentrated solution to the dilute solution is known as reverse osmosis.

During osmosis, water molecules from the less concentrated right side, will flow into the left side til they equilibrate- at equilibrium both sides will have the same concentration of solute.

Thus, the water passes through the membrane due to the difference in osmotic pressure/ solute concentration on either side of the membrane, this means that the water moves from regions of high osmotic pressure/concentration to regions of low osmotic pressure /concentration.  

Water potential equal to the pressure potential shifts  the equilibrium, resulting in the movement of solute.

<h3>                              φ= φs+φp</h3>

However, in reverse osmosis, solute molecules move from regions of high solute concentration, to regions of low solute concentration across the membrane.

Learn more about membrane components at brainly.com/question/1971706

Learn more about osmosis at brainly.com/question/5825825

#LearnWithBrainly

8 0
4 years ago
Explain how rubbing an object with a piece of cloth cold change the overall charge of the object.
Fantom [35]
By increasing the amount of energy produced by friction of the cloth can generate a electrical charge.
7 0
4 years ago
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What is the percent yield of ferrous sulfide if the actual yield is 220.0 g and the theoretical yield is 275.6 g?
BaLLatris [955]
<h2>Hello!</h2>

The answer is:

The third option, 79.8%

<h2>Why?</h2>

To calculate the percent yield we need to divide the actual yield by the theoretical yield, and then, multiply it by 100 in order to find the percent.

So, we from the statement we know the following information:

ActualYield=220.0g\\TheoreticalYield=275.6g

Let's use the following formula and substitute the given information:

PercentYield=\frac{ActualYield}{Theoretical}*100\\\\

PercentYield=\frac{220g}{275.6g}*100=0.798*100=79.8(percent)

Hence, we have that the correct option is the third option, the percent yield is 79.8%.

Have a nice day!

7 0
3 years ago
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Hope this is extra helpful but also check your notes! have a wonderful day and stay safe is you are up north in the snow!
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4 years ago
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1.00 x 10-7 moles to grams
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