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AnnyKZ [126]
3 years ago
14

Question: DNA is a ___________ found in the nucleus of cells in all living organisms.

Chemistry
2 answers:
inn [45]3 years ago
7 0

Answer:

  1. molecule
  2. genes
  3. they tried to trick u, its only letters, it then converts into sentences or chapters
  4. proteins
  5. similar

<h2><u><em>hope this helped :D</em></u></h2>

Sveta_85 [38]3 years ago
4 0

Answer:

Explanation:

molecule, gene, idk, proteins, similar

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What number of moles of Pb (NO3)2 is consumed when 54 g of KNO3 is produced
Ivenika [448]

Explanation:

hope it helps you understand moles

5 0
3 years ago
PLEASE HELP!!!!!!!
dsp73

Answer: 1. 2Al+3CuCl_2\rightarrow 2AlCl_3+3Cu

2. 3 moles of CuCl_2 : 2 moles of Al

3. 0.33 moles of CuCl_2 : 0.92 moles of Al

4. CuCl_2 is the limiting reagent and Al is the excess reagent.

5. Theoretical yield of AlCl_3 is 29.3 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} Al=\frac{25.0g}{27g/mol}=0.92moles

\text{Moles of} CuCl_2=\frac{45.0g}{134g/mol}=0.33moles

The balanced chemical equation is:

2Al+3CuCl_2\rightarrow 2AlCl_3+3Cu  

According to stoichiometry :

3 moles of CuCl_2 require = 2 moles of Al

Thus 0.33 moles of CuCl_2 will require=\frac{2}{3}\times 0.33=0.22moles  of Al

Thus CuCl_2 is the limiting reagent as it limits the formation of product and Al is the excess reagent.

As 3 moles of CuCl_2 give = 2 moles of AlCl_3

Thus 0.33 moles of CuCl_2 give =\frac{2}{3}\times 0.33=0.22moles  of AlCl_3

Theoretical yield of AlCl_3=moles\times {\text {Molar mass}}=0.22moles\times 133.34g/mol=29.3

Thus 29.3 g of aluminium chloride is formed.

5 0
2 years ago
What elements make up molecules make up molecules of sugar
Anna35 [415]
C12H22O11 aka carbon, hydrogen, and oxygen
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3 years ago
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Answer:

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Due to conservation of energy, the sum of the reactants = the sum of the products. So 28 + 30 = 58g

8 0
2 years ago
How many grams of chlorine gas must react to give 3.52g of BiCl3 according to the equation in exercise 23?
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6 0
3 years ago
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