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babunello [35]
3 years ago
15

The rungs of the DNA ladder are made up of _________.

Chemistry
1 answer:
aniked [119]3 years ago
5 0
The rungs of a DNA ladder are made up of NITROGEN BASES 
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Calculate the number of moles in 23.8 grams of Nitrogen, N.
Vlad1618 [11]

Answer:

n = 1.7 moles

Explanation:

Given mass, m = 23.8 grams

Molar mass of Nitrogen = 14 g/mol

Let there is n number of moles. We know that,

No. of moles = given mass/ molar mass

n=\dfrac{23.8}{14}\\\\n=1.7

So, there are 1.7 moles in 23.8 grams of Nitrogen.

8 0
2 years ago
Write the balanced nuclear equation for the alpha decay of thorium-232.
nydimaria [60]

Answer:

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5 0
1 year ago
Describe how you would separate rock salt to obtain salt crystals and pure dry sand.
USPshnik [31]

Answer:

Separating Sand and Salt

Probably the easiest method to separate the two substances is to dissolve salt in water, pour the liquid away from the sand, and then evaporate the water to recover the salt.

6 0
3 years ago
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erastovalidia [21]

Answer:80KM is distance. 30KM north is displacement.

Explanation:

8 0
2 years ago
the empirical formula for a compound used as a green paint pigment is C2H3As3Cu2O8. The molar mass of its molecular formula was
melisa1 [442]

Answer:

Molecular formula = C₄H₆As₆Cu₄O₁₆

Explanation:

Given data:

Empirical formula = C₂H₃As₃Cu₂O₈

Molar mass of compound = 1013 g/mol

Molecular formula = ?

Solution:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass  of C₂H₃As₃Cu₂O₈ is 506.897 g/mol

by putting values.

n = 1013 / 506.897

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₂H₃As₃Cu₂O₈)

Molecular formula = C₄H₆As₆Cu₄O₁₆

3 0
2 years ago
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