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kari74 [83]
3 years ago
10

What does “like dissolves like” mean?

Chemistry
1 answer:
Tems11 [23]3 years ago
4 0

Answer:

c  solvents dissolve chemicals with the same polarity ( ex. both are polar)

Explanation:

Like dissolves like is one of the central rule that guides the solubility of one substance in another.

  • It fully suggests substance having the same nature as in polarity-wise will dissolve one another.
  • For example, water is a polar liquid, it will dissolve table salt because it i also polar.
  • Water cannot dissolve oil because oil is non-polar.
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(GIVING BRAINLYIST) Which environment has low temperatures and low humidity?
Greeley [361]

Answer:

The answer would be tundra.

A rain forest has a lot of humidity because it rains a lot otherwise it wouldn't be called a rain forest.

Grassland has a somewhat high temperature and average humidity enough to keep it green and grassy hence grasslands.

A wetland has a lot of water but low temperatures. Still, humidity is water so wetlands aren't it.

Explanation:

Hope this helped.

A brainliest is always appreciated.

7 0
2 years ago
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Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy
Viefleur [7K]
Answer b longitudinal waves
6 0
4 years ago
Why the telescopes that detected no optical radiation are useful for studying objects in space
Afina-wow [57]
I would say that if they would use the regular ones, they would not be able to see very far. as well with that i would add that they need special lenses to see far. 
hope that this helps you! =)
8 0
4 years ago
A student performs the following experiment.
dybincka [34]

Answer:

Two different changes have occurred in the beaker. The description of the step 1 suggests that most likely a <u>chemical change</u> has occured while the description of the step 2 correspond to a<u> physical change</u>.

Explanation:

When the mixture of two liquid colorless substances results in the appearance of solid particles you first thing in the appareance of a new substance. If this is the case, it means that the original substances reacted chemically to form a new product, so this is a chemical change.

On the other hand, the second step describes just a physical change as it has been just that the yellow particles settled and then a physical separation by <em>decantation</em>. Decantation does not change the chemical properties of the particles settled, they are jsut separeated from the liquid. During this step both the yellow particles and the liquid in the beaker keep their chemical properties, so this is just a physical change.

4 0
3 years ago
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4. Calculate the number of carbon (C) atoms present in the 25 mL of sugar.
Nadusha1986 [10]

Answer: 8.38\times 10^{23}atoms of carbon

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

mass of sugar= density\times volume=1.59g/ml\times 25ml=39.75g

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{39.75g}{342.3g/mol}=0.116moles

1 mole of sugar C_{12}H_{22}O_{11}) contains = 12\times 6.023\times 10^{23}=72.28\times 10^{23}atoms of carbon

0.116 mole of sugar C_{12}H_{22}O_{11}) contains = \frac{72.28\times 10^{23}}{1}\times 0.116=8.38\times 10^{23}atoms of carbon

3 0
3 years ago
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