3 years ago

Why does secondary succession usually occur more rapidly than primary succession.

1 answer:

5 0

Secondary succession occurs more rapidly than primary because soil is already available so there is no need for any other species. Also, there might still be surviving species in the soil present like seeds, roots and other plant organs.

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A weather balloon has a volume of 1750 L at 103 kPa. The balloon is then released to the atmosphere. What is the pressure if at

AnnyKZ [126]

Answer:

35.0 kPa

Explanation:

As pressure decreases, the volume of a gas increases at a given temperature., so since the balloon got bigger, the new pressure must be less than 103kPa

Assuming the temperature does not change, use Boyles Law

P1V1 = P2V2

(103kPa) (1750L) = P2 (5150L)

P2 = (103)(1750) / 5150

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andre [41]

I believe it’s conductivity

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Complete the sentences to explain what a similar treatment would predict for the effective nuclear charge on boron valence elect

dsp73

Answer:

ZcH's electrons = 5-2 = +3.

ZcH for inner electrons = -5 - 0 = +5.

Explanation:

Boron 1s² 2s² 2p

As, 2s ⇒ 2.58.

2p ⇒ 2.42.

Electrons = +3.

Greater than 2 cm = 0.35

Slightly greater than +3 .

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Find change H for the reaction as it occurred in the calorimeter.

dimaraw [331]

Delta H = q / mass * delta temperature

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Explanation:

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