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Fynjy0 [20]
2 years ago
8

How does matter change its phase?

Chemistry
1 answer:
Harrizon [31]2 years ago
3 0

Explanation:

the answer can be in liquid, solid and gas

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As much as 25 percent of the fruits and vegetables grown in Chinese agricultural regions rot before they can be transported the
gulaghasi [49]

C. Developing effective methods of food preservation

Explanation:

The development of effective methods of food preservation is a much more smaller and manageable problem that contributes to the complex problem.

The percentage of food rotting is not as a result of lack of an effective preservation technique as highlighted in the passage. It is due to the long distances of agricultural area from where the farms are located.

  • To cut the loss, efficient and rapid transportation techniques needs to be put in place to carry the fruits and vegetables to the area where they are needed.
  • This is the most complex problem that if solved can peg back food rot.
  • Additional measures should be put in place to preserve the food.

Other options does not address the subject matter  

learn more:

Preservation brainly.com/question/4853419

#learnwithBrainly

7 0
3 years ago
THE LAST QUESTION I NEED, PLEASE HELP! WILL MARK BRAINLIEST IF CORRECT!
maw [93]

Answer: The answer is critical point

Explanation:

Took the quiz and got it right

6 0
3 years ago
Kind of protists can live in groups with different individuals performing different jobs (site 1)
zlopas [31]

Answer:

The plasmodial slime molds are the kind of protist that can live in groups in which different individuals perform different jobs. Some kinds of bacterial cell walls also have other functions.

8 0
3 years ago
Aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from further corrosion. 4 Al(s) + 3 O
aleksandrvk [35]

Answer:

The ΔS° for this reaction is -626.22 J/K.

Explanation:

4Al(s)+3O_2\rightarrow 2Al_2O_3(s)

The equation used to calculate ΔS° is of a reaction is:  

\Delta S^o_{rxn}=\sum [n\times \Delta S^o_f(product)]-\sum [n\times \Delta S^o_f(reactant)]

The equation for the enthalpy change of the above reaction is:

\Delta S^o_{rxn}=(2 mol\times \Delta S^o_f_{(Al_2O_3(s))})-(4 mol\times \Delta S^o_f_{(Al(s))}+3 mol\times \Delta S^o_f_{(O_2(g))})

We are given:

\Delta S^o_f_{(Al(s))}=28.3J/K mol\\\Delta S^o_f_{(O_2(g))}=205.0 J/K mol

\Delta S^o_f_{(Al_2O_3(s))}=50.99 J/K mol

Putting values in above equation, we get:

\Delta S^o_{rxn}=(2 mol\times 50.99 J/K mol)-(4 mol\times 28.3J/K mol-3 mol\times 205.0 J/K mol)=22.5kJ/mol

\Delta S^o_{rxn}=-626.22 J/K

The ΔS° for this reaction is -626.22 J/K.

7 0
3 years ago
Which of the following characteristics do all of the outer planets have in common? A. They lack moons. B. They are small and den
Bogdan [553]
I think the correct answer from the choices listed above is option D. Outer planets are mostly made up of gases and are huge in size. These gases are hydrogen and helium. <span>These outer planets are Saturn, Jupiter, Uranus, and Neptune. Hope this answers the question.</span>
8 0
3 years ago
Read 2 more answers
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