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Answer:

Explanation:
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In this case, for the given constant amount and pressure of the, we apply the Charles' law which allows us to understand the volume-pressure behavior as a directly proportional relationship:

Thus, since we need to compute the volume after the temperature increase (which must be expressed in absolute Kelvins), we obtain V2 as:

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Species will be four secondary and tertiary consumers will be 25
Explanation-
Given in the question the number of species is 4 then it will have 8 primary 10 secondary and 10 tertiary consumers. If this number of primary consumers increases from 8 to 20 consumers then the number of species involved would be 10 { 4x20/8 }
Number of secondary consumers would also be increased and increased value would be 25 { 10x20/8 } then again comes the tertiary number of consumer which also increases. The number of tertiary consumers will increase to 25 { 10x20/8} same as secondary.
Sodium and chlorine are combined sodium atom each lose an electron and chlorine atoms gain an electron to make sodium chloride
Answer:
5.75 g.
Explanation:
- It is known that the decay of isotopes of Pb-189 obeys first order kinetics.
- Also, it is clear that in first order decay the half-life time is independent of the initial concentration.
- The half life time of Pb-189 decay = 20 days.
- Thus, 60 hours represent (60/20) 3 half-lives.
<em>∴ 46 g →(first half-life) 23 g →(second half-life) 11.5 g →(third half-life) 5.75 g.</em>
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- <em>So, The amount remained is 5.75 g after 3 half-lives (60 days).</em>