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aleksley [76]
3 years ago
8

What was the main reason why Alfred Wegener's theory about the movement of the continents was dismissed in 1912?

Chemistry
1 answer:
eduard3 years ago
8 0

Answer:

His map of the ocean floor did not support his theory

Explanation:

  • Alfred Wegner was a great scientist
  • He observed the plate tectonics of earth and described it in a theory.
  • It was dismissed after viewing his ocean floor
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Answer:

Released I think

5 0
2 years ago
How does the composition of the liquid at the top of the fractional distillation column compare with the composition of the liqu
Montano1993 [528]

Answer:The top of the fractional distillation column will have a more volatile liquid as compared to the liquid at the bottom.

Explanation:

Fractional distillation is the method of separating liquids with different boiling points.For example,ethanol can be separated from water from a ethanol-water mixture.The component with a lower boiling point will pass in the column and collected first followed by higher boiling point component.Repeated vaporization and condensation results in the separation of the components in the mixture.

5 0
3 years ago
Please help!!! Is the following example of synthesis? 2H2 + O2 —> 2H2O
aev [14]

Answer:

hahahaa i can get the points

Explanation:

yes it is again LOL thanks

7 0
2 years ago
a sample that has a half life of 45 years take ____ for the count rate to drop from 600 cpm to 150 cpm
Bond [772]

Answer:

90yrs

Explanation:

Half life is the time taken for half of an original radioactive material to decay by half.

For the sample;

    Half - life = 45yrs

  Original amount  = 600cpm

 

                 Start                                  Number of atoms    

                 0yrs                                                600cpm

                                   First half life

                 45yrs                                              300cpm

                                  Second half life

                 90yrs                                               150cpm

5 0
3 years ago
7 on the pH scale represents what?
Nitella [24]

Answer:

seven on the ph scale is the neutral point

Explanation:

The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

3 0
2 years ago
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