Covalent bonding is when electrons are shared between atoms.
Answer:
Explanation:
cells process rna and trna
converting food into energy
the regrowth of cells that have died through out the day
the transcription of dna to rna
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Answer: The correct option is (c). The total pressure doubles.
Solution:
Initially, only 4 moles of oxygen gas were present in the flask.
(
) ( according to Dalton's law of partial pressure)
....(1)
= Total pressure when only oxygen gas was present.
Final total pressure when 4 moles of helium gas were added:

partial pressure of oxygen in the mixture :
Since, the number of moles of oxygen remains the same, the partial pressure of oxygen will also remain the same in the mixture.

= Total pressure of the mixture.
from (1)

On rearranging, we get:

The new total pressure will be twice of initial total pressure.
Answer:
The answer to your question is: letter A
Explanation:
a. Ribonucleotides have a hydroxyl group on the 2 carbons of their sugar sub-unit. This is the main difference between Ribonucleotides and deoxyribonucleotides, the first have hydroxyl group in carbon number two, while the second have a hydrogen.
b. Ribonucleotides contain a phosphate group.
c. Ribonucleotides have a hydrogen atom on the 1 carbon of their sugar sub-unit.
d. Ribonucleotides contain a sugar with five carbon atoms.
Mass of substance in grams 60.1