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elena55 [62]
3 years ago
12

Iron filings can be separated from a mixture with sulfur by using a magnet.

Chemistry
2 answers:
lbvjy [14]3 years ago
3 0
The answer is A. True
Diano4ka-milaya [45]3 years ago
3 0

Answer:

True

Explanation:

Mixture of sulfur and iron filings can be separated by using magnet.

Magnets attract iron. This is because when iron is exposed to magnet, the electrons of the iron begin to align in the direction of magnetic field which creates attraction between iron and magnet. This phenomenon is called magnetism.

Sulfur does not have this property and hence, do not get attracted towards magnet.

So, if magnet is brought near the mixture of iron and sulfur, the iron will attach with magnet and get separated.

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Answer each of the following questions with increases, decreases, or does not change.
Nitella [24]

Answer:

a) increases

b) decreases

c) does not change

d) increases

Explanation:

The vapour pressure of a liquid is dependent on;

I) the magnitude of intermolecular forces

II) the temperature of the liquid

Hence, when any of these increases, the vapour pressure increases likewise.

Similarly, the boiling point of a liquid depends on the magnitude of intermolecular forces present because as intermolecular forces increases, more energy is required to break intermolecular bonds.

Lastly, increase in surface area of a liquid does not really affect it's vapour pressure.

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3 years ago
A large room contains moist air at 308C, 102 kPa. The partial pressure of water vapor is 1.5 kPa. Determine
andreev551 [17]

Answer:

you tell me

Explanation:

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2 years ago
Determine the mole fraction of the solute if you have 3.4 grams KCl in 8.1 grams H2O
Yakvenalex [24]
.42; 3.4 divided by 8.1 is about .42
6 0
3 years ago
Read 2 more answers
What is missing from this graph?<br><br> A. axis labels<br> B. a trendline<br> C. a title
Iteru [2.4K]

Answer:

Axis Labels

Explanation:

The axis labels are usually located on the x and y axis. This graph however is missing those.

hope this helps!

7 0
3 years ago
Identify the intermolecular attractions for dimethyl ether and for ethyl alcohol. Which molecule is expected to be more soluble
zheka24 [161]

Answer:

See explanation

Explanation:

All molecules possess the London dispersion forces. However London dispersion forces is the only kind of intermolecular interaction that exists in nonpolar substances.

So, the only kind of intermolecular interaction that exists in dimethyl ether is London dispersion forces.

As for ethyl alcohol, the molecule is polar due to the presence of polar O-H bond. In addition to London dispersion forces, dipole-dipole interactions and specifically hydrogen bonding also occurs between the molecules.

Because ethyl alcohol is polar, it is more soluble in water than dimethyl ether.

3 0
3 years ago
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