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ololo11 [35]
3 years ago
12

Which of the following is most likely to happen if oxygen is not able to enter a cell?

Biology
2 answers:
Darina [25.2K]3 years ago
8 0
The cell will not produce energy.
bagirrra123 [75]3 years ago
4 0
The cell will not produce energy
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How many grams of potassium nitrate (KNO3) would form if 2.25 liters of a 1.50 molar lead nitrate Pb(NO3)2 solution reacts with
nekit [7.7K]
First we must understand the balanced chemical equation:
Pb(NO3)2 + K2CrO4 ==> PbCr04 + 2KNO3

This shows us that two moles of potassium nitrate are formed from 1 mole of lead nitrate or potassium chromate solution. The next step is to find out how many moles of each reactant there are. Note the word Molar is a concentration that simply means moles per liter.

2.25L of 1.5M lead nitrate = 2.25x1.5 = 3.375 moles of lead nitrate
1.15L of 2.75M potassium chromate = 1.15x2.75 = 3.1625 moles

The important part here is to see that the number of moles of the reactants are different. We know the number of moles of products will be dependent on the number of moles of reactants, and in this case there is less potassium chromate than there is lead nitrate, so this is the limiting factor as there is a one to one relationship with both reactants. Therefore, the number of moles of potassium nitrate produced is 2 x number of moles of potassium chromate. i.e. 6.325 moles of potassium nitrate is liberated.

To work out the number of grams, we must find the molar mass (the mass of one mole) of KNO3, which is the sum of the molar mass of each of its component atoms that make up the molecule. I've looked this up as 101.1 grams per mole.

Now we simply times the molar mass by the number of moles to yield the final grams liberated: 6.325 moles  x 101.1 grams/mole = 639.4 grams of potassium nitrate is liberated from this reaction.
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3 years ago
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Which statement defines the life cycle of plants such as palm trees?
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The life cycle of plants involves into two parts, first is the diploid phase and the second would be the haploid phase. Therefore, the answer would be letter A. Palm trees are known to be perennial plants and usually grows in the environment that are warm and more humid.
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Answer:

Dehydration Synthesis

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When there isn't enough room in the cell for two complete molecules of DNA, the prokaryote stops replication and undergoes cell division.
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**will give brainliest**
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The answer is d. carbon-12, potassium, and argon

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