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slavikrds [6]
3 years ago
9

If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highes

t density? A. the layer at the top of the glass B. the third layer from the bottom of the glass C. the layer at the bottom of the glass D. the second layer from the bottom of the glass
Chemistry
2 answers:
Naddik [55]3 years ago
7 0

Answer:

C. the layer at the bottom of the glass

Explanation:

The liquid with the higher density will be found at the bottom of the glass because is the heaviest of all. The liquids which have a lower density than the liquid at the bottom of the glass will be found at the top of the glass. We assume that the liquids are not soluble in each other because otherwise they will be mixed.

kirill115 [55]3 years ago
5 0

Answer:

A, the layer at the top of the glass.

Explanation:

When liquids of different densities are added to a glass, the liquid with the highest density tends to settle at the bottom and the liquid with the lowest density tends to float to the top of the container.

This is because denser liquids exert more pressure due to gravity, and they are able to push less dense fluids out of their way. - Study island

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An unknown substance is heated from 10 °C to 25 °C. The table below shows the state of the substance at different temperatures.
bezimeni [28]

Answer:

Its melting point is 17 °C.

Explanation:

  • The melting point of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium.

<em>So, the melting point is 17 °C.</em>

And this is shown in the figure attached.

7 0
3 years ago
Read 2 more answers
BRAINLIEST:
vekshin1
33 is the correct answer
8 0
3 years ago
What is the ph of an acetic acid solution if 10 drops are titrated with 70 drops of a 0.65 m koh solution? (ka for acetic acid =
laiz [17]
<span>What is the ph of an acetic acid solution if 10 drops are titrated with 70 drops of a 0.65 m koh solution? (ka for acetic acid = 1.8 x 10-5)?

[KOH] = 0.65 M
[OH] = 0.65 M
</span>Dilute your mom
<span>[OH]Dil= 0.65 M * 70/80 = 0.56875 M

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7 0
3 years ago
A gas occupies a volume of 67.54 liters at 158°C and 4.87 atm pressure. Calculate the number of moles of this gas.
Katarina [22]

Answer:

The number of moles of the gas is 9.295 moles or 9.30 moles

Explanation:

We use PV = nRT

Where P = 4.87 atm;

V = 67.54 L

R= 0.0821Latm/molK

T = 158 C = 158 +273 K = 431 K

the number of moles can be obtained by substituting the values in the respective columns and solve for n

n = PV / RT

n = 4.87 * 67.54 / 0.0821 * 431

n = 328.9198 / 35.3851

n = 9.295moles

The number of moles is approximately 9.30moles.

6 0
3 years ago
Which condition increases the number of collisions between reactant molecules in a given volume?
Nezavi [6.7K]

Answer:

Increasing Surface Area

Explanation:

A greater surface area (meaning more, smaller particles) allows for more opportunity for particles to collide.  On the other hand, decreasing temperature and removing a catalyst would only decrease the number of collisions, and the clumping option doesn't make much sense.  Hope this helps!

4 0
3 years ago
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