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pishuonlain [190]
3 years ago
8

A U-shaped valleys most often formed by what a) volcanoes b) oceans waves c) plate movement d) glacial movement

Chemistry
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

D. Glacial movement

Explanation:

Glaciers are very large and carve a U shape into the ground.

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Hi , these are the definitions
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4 0
3 years ago
Frozen water is less dense than liquid water, allowing lake organisms to survive winter.
klasskru [66]

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7 0
3 years ago
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A first-order reaction (A → B) has a half-life of 25 minutes. If the initial concentration of A is 0.900 M, what is the concentr
Oksanka [162]

Answer:

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Explanation:

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Half life of the reaction = t_{1/2}=25 minutes

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k=\frac{0.693}{t_{1/2}}

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[A]=0.900 M\times e^{-0.02772 min^{-1}\times 50 minutes}

[A] = 0.2251 M

The concentration of A after 50 minutes = 0.2251 M

The concentration of B after 50 minutes = 0.900 M - 0.2251 M = 0.6749 M

0.6749 M is the concentration of B after 50 minutes.

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