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Mila [183]
3 years ago
14

Which of the following statements is true?

Chemistry
2 answers:
siniylev [52]3 years ago
7 0
A DNA and chromosomes are found in different types of cells
romanna [79]3 years ago
4 0
The answer is A.............
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Suppose a new liquid were discovered that is identical to water in every way except that it has a lower latent heat of fusion. W
faltersainse [42]

Answer:

It would take less time, because having a lower temperature of latent heat means that at a lower temperature it merges, therefore the closer it will be to the temperature of solification which is 0 degrees Celsius or Celsius ... It is then that it would solidify in less time than water

Explanation:

By acting and having all the same properties as water except for latent heat, it considers that the solidification temperature is 0 degrees Celsius like water.

3 0
3 years ago
Read 2 more answers
Dry air is 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide so varying amounts of water vapor- depending on hu
AfilCa [17]

Answer:

C. Carbon dioxide

Explanation:

Carbon dioxide is one of the end-product of combustion reactions involving many fuels today.

With the rapid increase in urbanization and technological development, man demand for energy increased tremendously. The discovery of fossil fuels paved the way for the astronomical increase in the concentration of carbon dioxide in the atmosphere. The burning of fossil fuels like coal and oil invovles the process where the carbon atoms present in these fuels combine with oxygen in the air to make CO2. This has resulted in an increase in the concentration of atmospheric carbon dioxide (CO2).

The burning fossil fuels for electricity, industry, heat, and transportation are the major sources of the emossion of carbon dioxide.

Also, the cutting down of trees for paper production, building construction and for the establishment of settlements also increase the concentration of carbon dioxide in the atmosphere. Trees are help remove carbon dioxide from the atmosphere through the process of photosynthesis. However, when these trees are cut down, carbon dioxide accumulates in the atmosphere.

5 0
3 years ago
How many moles of ions are produced by ionization of 2 moles of MgCl2
tensa zangetsu [6.8K]

Answer:

number of ions = 12.04 x 10^²³

Explanation:

n = number of ions/Avogadro's constant

2 = number of ions/6.02 x 10^²³

number of ions= 2 x 6.02 x 10^²³

number of ions = 12.04 x 10^²³

3 0
3 years ago
Which of the following would be a qualitative observation? A The volume of the solution is 25 ml B The solution turned blue C Th
mariarad [96]
B

A qualitative observation describes the characteristics of a substance without quantifying them.
3 0
3 years ago
Balance the following reaction: NaOH + HCl → NaCl + H2O Enter your answer in
Korvikt [17]
<span>NaOH + HCl = NaCl + H2O</span>
8 0
3 years ago
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