Please fill in the graphic organizers
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a and b is for heterogeneous mixtures and c is solutions
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Tutorial queshers Set 1| Why does molecule become a chiral if has a Plane of symmetry even through it has stereocenter
A reaction generates hydrogen gas (H) as a product. The re-actants are mixed and sealed in a 250.-mL vessel. After20.0 minutes, 3.91 X 10-2 mol H, has been generated.Calculate the average rate of the reaction.
Elaborate on the difference in natural occurrences between fission and fusion reactions. A) Neither fission nor fusion reactions naturally occur on earth or outer space. B) Fission reactions do not naturally occur while fusion reactions occur in the stars. C) Both fission and fusion reactions naturally occur in the pressure of the earth's core. D) Fusion reactions do not naturally occur while fission reactions occur in the volcanoes.
Why is it that the north star is the only star in the night sky that seems to stay still
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Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.
- Alfred Wegener was a German geophysicist who proposed the continental drift hypothesis.
- According to this hypothesis, the continents were once a single landmass called Pangaea, which incorporated almost all the landmasses on Earth.
- Wegener proposed that Pangea separated (approx. 200 million years ago) in order to create continents.
- Finally, the continents slowly moved to their current positions by a process he called continental drift.
In conclusion, Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.
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The leaf of an African violet is placed on the ground and a new plant grows from it.
A piece of a rose stem is planted in the ground and a new rosebush grows there.
all of the above
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B) not moving for the first 2 seconds, then begin moving and continue to gain speed.
C) slowing down for the first two seconds, then begin moving at a constant speed.
D) not moving for the first two seconds, then begin moving at the constant speed.
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Answer:
According to the following position vs. Time graph the bicyclist was : D
D. Not moving for the first two seconds, then begin moving at the constant speed.
Explanation:
Along Y-axis = Distance in meters
Along X-axis = Time taken in second
- For first 2 seconds the The object has not changed its position.There is Zero distance covered.So , Speed = 0
- After 2 second,The Object changed the distance by equal amount in equal interval of time.(Uniform Speed).Hence at each point after 2 second, there is same value speed
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Sexual reproduction can be described as the method of reproduction in which the offsprings produced will have half the chromosomes as compared to the parent cell. The other half of the chromosomes to make a complete set would arise from the other parent. In this way, the offspring produced will carry half of the chromosomes from the female parent and half from the male parent.
Crossing over and independent assortment are two phenomenons of meiosis due to which genetic diversity occurs and the offsprings born are not exactly similar to the parent cell.
Answer: The four cells that are produced by meiosis has only one of each chromosome. One of these four cells from one parent combines with another from the other parent to produce the offspring. An offspring gets half its chromosomes from each parent. But the exact combination of chromosomes it gets from each parent is random. So, each offspring ends up with a unique set of genes different from its parents and other offspring.