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White raven [17]
2 years ago
5

Colin is helping the librarian return books

Chemistry
1 answer:
DedPeter [7]2 years ago
6 0

Explanation:

You mean the librarian is helping colin return books

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6th grade science plz help Major grade Need help with 4,5, and 6
olganol [36]
4=population, 5 and 6 are ecosystem
4 0
2 years ago
Where in this image would the Moon need to be in order for there to be a total lunar eclipse?​
sattari [20]

Answer:

A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy), with Earth between the other two. A lunar eclipse can occur only on the night of a full moon.

Explanation:

6 0
3 years ago
What element is stored in the shells and skeltyons of living organisims?
kykrilka [37]

Answer:

carbon

Explanation:

Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons. Other chemical processes create calcium carbonate in the water. The using up of carbon by biological and chemical processes allows more carbon dioxide to enter the water from the atmosphere.

8 0
3 years ago
A voltaic cell is made using a lead electrode and copper electrode. The electrolytes for each half cell are lead nitrate and cop
lisov135 [29]

The cell notation is Pb_{(s)}  Pb^{2+} _{(aq)} ║Cu^{+2}_{aq}  Cu_{(s)} and the cell potential is 0.464

The reaction occurred while losing of hydron is known as oxidation reaction

We can also tell that the reaction occurred while gaining of oxygen atom is known as oxidation reaction.

The reaction occurred while gaining of hydrogen is known as reduction reaction or we can say that the reaction occurred while losing oxygen atom is known as reduction reaction

An electrochemical cell's cell potential is defined as the difference in potential between two half cells. The electrons' capacity to go from one half cell to the other is what causes the potential difference. As a result of the chemical reaction being a redox reaction, electrons can travel across electrodes.

Calculating the Cell potential

E°cell  = E°(reduction) - E°(oxidation)

           = 0.34 - (-0.0124)

           = 0.464

Hence the cell potential is 0.464

Learn more about Cell potential here

brainly.com/question/11638563

#SPJ10

6 0
1 year ago
3.
zheka24 [161]

Answer:

They are called downbursts.

5 0
2 years ago
Read 2 more answers
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