All categories

3 years ago

name some examples of chemical solutions and maybe give a clear explanation as to what chemical solutions are

Chemistry

1 answer:

vfiekz [6]3 years ago

4 0

Answer:

Some examples of solutions are salt water, rubbing alcohol, and sugar dissolved in water. ... In our example of salt water, the solute is the salt. Solvent: this is the substance that makes up the majority of the solution. This is the part where the solute is dissolved.

Explanation:

I hope they should be right answer

You might be interested in

Why is NH3 polar but CH4 non polar

Alex787 [66]

Answer:

Explanation:

Nitrogen has a lone pair of electrons. That would mean that NH3 is minus at the left end in this case.

:N H

Methane has its Hs 90 degrees (approximately apart.

H C H

The pulling forces on the methane cancel each other out. When that happens the chemical is non polar.

6 0

3 years ago

What is the hydrophobic effect? what types of atoms are most likely to be found in portions of molecules or entire molecules tha

HACTEHA [7]

Hydrophobic in simple terms is the "fear" of water.

In chemistry, Ionic salts are technically hydrophilic as they will dissolve in water.
most fats and oils or triesters won't why?

salts are made from ions and their structure contain polar bonds Na+ and Cl-
Fats and oils tend to not have these.

Fats and oils contain many carbon covalent bonds which are non-polar which tend to make the molecule non-polar as a whole, therefore, it can't dissolve in water and is said to be hydrophobic.

Hope that heps :)
NB included a diagram to help.

7 0

3 years ago

For a particular reaction, ΔH∘=20.1 kJ/mol and Δ????∘=45.9 J/(mol⋅K). Assuming these values change very little with temperature,

tia_tia [17]

Answer:

The temperature should be higher than 437.9 Kelvin (or 164.75 °C) to be spontaneous

Explanation:

Step 1: Data given

ΔH∘=20.1 kJ/mol

ΔS is 45.9 J/K

Step 2: When is the reaction spontaneous

Consider temperature and pressure = constant.

The conditions for spontaneous reactions are:

ΔH <0

ΔS > 0

ΔG <0 The reaction is spontaneous at all temperatures

ΔH <0

ΔS <0

ΔG <0 The reaction is spontaneous at low temperatures ( ΔH - T*ΔS <0)

ΔH >0

ΔS >0

ΔG <0 The reaction is spontaneous at high temperatures ( ΔH - T*ΔS <0)

Step 3: Calculate the temperature

ΔG <0 = ΔH - T*ΔS

T*ΔS > ΔH

T > ΔH/ΔS

In this situation:

T > (20100 J)/(45.9 J/K)

T > 437.9 K

T > 164.75 °C

The temperature should be higher than 437.9 Kelvin (or 164.75 °C) to be spontaneous

7 0

3 years ago

help, Look at the model below. Explain what is correct and/or incorrect about the model based on scale, proportion, and quantity

stiks02 [169]

One correct thging is that there are the same amount of positive and negative atoms

6 0

2 years ago

Which scenario is an example of primary succession?

pishuonlain [190]

Answer:

the answer to your question is A

8 0

3 years ago

name some examples of chemical solutions and maybe give a clear explanation as to what chemical solutions are ​

name some examples of chemical solutions and maybe give a clear explanation as to what chemical solutions are