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Nadusha1986 [10]
2 years ago
15

The RNA and DNA backbone differ because the DNA sugar is missing what element?

Chemistry
1 answer:
hammer [34]2 years ago
4 0

Answer:

D.

Explanation:

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What is the temperature change in 355 mL of water upon absorption of 34 kJ of heat? (The specific heat capacity of water is 4.18
frozen [14]

The temperature change is 23 °C.

<em>q = mC</em>Δ<em>T</em>

Δ<em>T</em> = <em>q</em>/(<em>mC</em>)

<em>m</em> = 355 g

∴ Δ<em>T</em> = (34 000 J)/(355 g × 4.184 J·°C⁻¹g⁻¹) = 23 °C

<em>Note</em>: The answer can have only <em>two significant figures</em> because that is all you gave for the amount of heat absorbed.

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3 years ago
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How are plant and animal cells similar? How are they different? To answer these questions, make a list of the different organell
aleksley [76]

Answer:

A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.

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2 years ago
How much heat is required to convert 2.55g of water at 28.0 degree celsius to steam 100 degree celsius
Crazy boy [7]
767.448 Joules of heat is required.
You use the equation Q=MCdeltaT
Make sure you convery celsius to Kelvin
Specific heat of water is 4.18
So it will be Q=2.55(4.18)(72)
Q=767.448
4 0
3 years ago
The middle ear converts sound from what into vibrations that can be sent through what?
Katarina [22]

Answer:

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Eardrum or tympanic membrane changes sound to vibration and pass through malleus, incus and stapes.

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What number should be in front of O2 to balance the equation?
romanna [79]

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There are now two oxygen atoms on the left and four on the right (in one N2O and three H2O's), so we balance the oxygen atoms by placing a 2 in front of the O2.

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