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aliya0001 [1]
2 years ago
5

The white Dwarfs are a group of stars that are-

Chemistry
1 answer:
Pavel [41]2 years ago
6 0

Answer: A

Explanation:

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What evidence did Mendeleev use to decide that the alkali metals should be in the same group?
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Answer:

they all reacted the same

Explanation:

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2 years ago
You have 0.5 L of air at 203 k in an expandable container at constant pressure. You heat the container to 273 k. What is the vol
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You can use P1V1/T1 = P2V2/T2 but since pressure is constant is becomes V1/T1=V2/T2

V1=0.5 L
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0.5L/203 = V2/273
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Hope this helps :)
4 0
3 years ago
What is the formula of a compound formed between nitrogen (N) and potassium (K)?
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<span>You need to consider the valences of the two elements. Potassium is +1; nitrogen is -3. To balance the molecule, you need 3 potassium to one nitrogen, or K3N</span>
5 0
3 years ago
Read 2 more answers
Is this correct? also for the mass i have to round it to the closest whole number
11Alexandr11 [23.1K]
A lithium atom has 3 protons and 3 electrons. It can lose one of its electrons, making it an ion. It now has more positive protons than electrons so it has an overall positive charge. Overall charge is +1
8 0
3 years ago
What are some advantages of asexual reproduction when compared to sexual reproduction? What are some disadvantages of asexual re
never [62]

Answer:

  • An additional advantage of asexual reproduction is that colonization of new habitats may be easier when an individual does not need to find a mate to reproduce. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.
  • A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species , however, outweighs this disadvantage.

Explanation:

:)

3 0
2 years ago
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