A painted turtle is a cold blooded animal that often sits on a log and basks in the sun. Why might it do this?

Chemistry

2 answers:

Pavlova-9 [17]3 years ago

8 0

Cold blooded animals are not warm themselves, so they use the energy from the sun to get warm.

horrorfan [7]3 years ago

5 0

Answer:

It's a cold blooded animal, and they can not warm themselves so they rely on other thins, such as the sun, to warm themselves

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Here is a more complex redox reaction involving the dichromate ion in acidic solution: 3N O 2 − + 8H + + C r 2 O 7 2− → 3N O 3 −

Fantom [35]

Answer:

NO2- is the reducing agent.

Cr2O7_2- is the oxidizing agent.

H+ is neither

Explanation:

Reduction is the gain in electron. A chemical specie that undergoes reduction is called the oxidizing agent.

Oxidation is simply the loss in electrons. A chemical specie that undergoes oxidation is called the reducing agent.

Let us look at the species.

The first specie is the NO2-. In this specie, the oxidation number of nitrogen changed from +3 to +5 in NO3-. Thus we can see that there is more loss of electron to have caused an increase in the oxidation number positively. This shows an oxidation. Hence, NO2- is the reducing agent.

Let us look at the chromium. We can see that the oxidation number of chromium changed from +7 to +3.

Now we can see that it is a decrease and hence, it is a gain of electron and thus it is reduction. This means the first chromium specie is the oxidizing agent.

The hydrogen ion is simply placed there to balance the ions and hence it is neither the oxidizing nor the reducing agent.

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3 years ago

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natali 33 [55]

Answer:

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2 years ago

4) The most electronegative atom of the ones listed below is ____.AlBTlInGa

marusya05 [52]

Answer: