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vredina [299]
3 years ago
8

Q2. Which of these is a mixture?

Chemistry
1 answer:
iVinArrow [24]3 years ago
7 0
The answer is sodium chloride
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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
Tính khối lượng H2SO4 có trong 50ml dung dịch H2SO4 2M.
podryga [215]

Answer:

50ml=0,05l\\n_H_2SO_4=2.0,05=0,1mol\\mH_2SO_4=0,1.98=9,8g

Explanation:

8 0
2 years ago
What is always true about the kinetic energy of a single particle in a gas
marin [14]

Gas particles are in constant motion, and any object in motion has kinetic energy

7 0
3 years ago
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2 Which compound has covalent bonds? *<br> O (1) H20<br> (2) Li20<br> (3) Na,o<br> (4) K,0
Leokris [45]

Answer:

1) H2O

Explanation:

this is because there is a bond between two nonmetals, Hydrogen and oxygen,  so the bond is covalent. all the other are bonds between a metal and nonmetal so it is ionic.

8 0
3 years ago
Which of the following is an sp2 hybridized carbon?
Temka [501]

Answer:

CH3+

Explanation:

Sp2 hybridization involves the mixing of on s and two p orbitals. This is observed in CH3+. The ion is trigonal planar with a H-C-H bond angle of 120°.

The anion, CH3^- is sp3 hybridized, hence only CH3+ is sp2 hybridized among the options.

6 0
3 years ago
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