3 years ago

Explain why food chains do not tend to exceed four links.

1 answer:

3 0

Energy is "lost" at each trophic level when you go up the chain. <span> Typically there are fewer organisms at higher trophic levels.

Hope this helps!</span>

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In solution, strong acids and bases ionize completely, but weak acids and bases ionize only partially.

Vadim26 [7]

Answer:

The given statement is true.

Explanation:

Strong acids and bases act as strong electrolytes.They undergo complete dissociation in an aqueous medium to generate cations and anions.

For example HCl ⇄ H+ + Cl-

Hydrochloric acid is a strong electrolyte,it undergo complete dissociation in an aqueous solution to generate H+ ion and Cl- ion.

On the other hand acetic acid is a weak acid and act as weak electrolyte.In aqueous solution acetic acid under partial dissociation to form acetate anion and proton.

CH3COOH ⇄ CH3COO- + H+

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An experiment was conducted in order to determine the enthalpy change that occurs when 1.0 mole of ice at 0 degrees Celsius melt

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Answer: 1

Explanation:

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How many grams of ethanol would be formed from the reaction of 243.7<br> grams of glucose?

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Answer:

5 billion times

Explanation:

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Steve, Sarah, Richard, and Kate each run paper chromatography on unknown liquids. Steve gets a red band, Sarah gets a yellow ban

sladkih [1.3K]

Steve, Sarah, Richard, and Kate each run paper chromatography on unknown liquids. Steve gets a red band, Sarah gets a yellow band, Richard gets a greenband, and Kate gets a yellow band and a blue band.

I am pretty sure it would be Kate since she got 2 different colored bands.

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4 years ago

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What is the valence electron of manganese?

DIA [1.3K]

Answer:

25th electron

Explanation:

the last electron is the valence electron. Assuming it has equal numbers of protons and electrons, then the 25th electron is the valence.

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