I NEED HELP PLEASE FAST, BRAINLIEST! :) What's unique about the freezing of water?

Chemistry

1 answer:

Gnom [1K]3 years ago

6 0

Answer:

Instead of contracting and sinking, ice expands and floats. Ice on top of a pond or lake help protect water plants and fish during very cold weather. They live securely beneath the ice until melts in warmer weather

Explanation:

it helps the plants survive and preserves life

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A solution at 25 ∘C has pOH = 10.53. Which of the following statements is or are true? The solution is acidic. The pH of the sol

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Answer:

The true statements are:

The solution is acidic

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The pH of the solution is defined as negative logarithm of hydrogen ion concentration present in the solution .

$pH=-\log[H^+]$

The pH value more 7 means that hydrogen ion concentration is less ,alkaline will be the solution.
The pH value less 7 means that hydrogen ion concentration is more ,acidic will be the solution.
The pH value equal to 7 indicates that the solution is neutral.

The pOH of the solution is defined as negative logarithm of hydroxide ion concentration present in the solution .

$pOH=-\log[OH^-]$