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LiRa [457]
4 years ago
6

Sometimes genes, for no known reason(s), change their form in a process called spontaneous malformation spontaneous acceleration

spontaneous combustion spontaneous mutation
Chemistry
1 answer:
padilas [110]4 years ago
3 0

The answer is spontaneous mutation .  

Sometimes genes, for no known reason(s), change their form in a process called spontaneous mutation.  

Mutation is the actually the alteration of the nucleotide sequence of the genome of an organism, virus, or other genetic elements permanently.  

Spontaneous mutation : It is a process in which gene automatically for no reason change their form.

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Write a resonance form for pyrrole in which nitrogen has a formal charge of 1. Are comparable resonance forms possible for pyrid
Svetach [21]

Answer:

See explanation and image attached

Explanation:

Here attached are resonance forms of pyrrole and pyridine. The images were obtained from quora and researchgate respectively.

Now, we can see that in the resonance forms of pyrrole, the nitrogen atom in the heterocycle has a formal charge of +1. However, in the six membered pyridine hetrocycle, the nitrogen atom may have a formal charge of -1 or +1 as shown in the canonical structures attached. The structures in which nitrogen has a +1 formal charge in pyridine are comparable to structures obtained from pyrrole. These structures have less contribution to the structure of pyridine.

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3 years ago
Real life examples of limiting reactants
Volgvan

Answer:

C+O = CO

Explanation:

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3 years ago
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Which evidence indicates the ocean plays a large role in climate change?
Elza [17]

You already gave the answer

5 0
3 years ago
How many atoms are there in 42 grams of NH3?
shepuryov [24]

Answer:

We know that we have 1 Atom of N and 3 Atoms of H to get 4 total atoms of NH3

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=5.951 x10^24 atoms of NH3

I hope this helped :)

5 0
3 years ago
A 12.0 wt% solution of CaCl2 (110.98 g/mol) has a density of 1.107 g/mL.
mariarad [96]

Answer:

a) Mass of solution is 16,605 milli grams.

b) 57.29 grams is the mass of calcium chloride in 431.3 mL of a 12.0 wt% solution.

c) 1.1967 mol/L is the formal concentration of calcium chloride in 431.3 mL solution.

Explanation:

Mass by mass percentage of calcium chloride solution, wt% = 12.0%

Density of the solution = d = 1.107 g/mL

a) Volume of the solution , V= 15.0 mL

Mass of the solution = m

Mass=density\times Volume

m=d\times V=1.107 g/ml\times 15.0 mL=16.605 g

Mass of solution = 16.605 g = 16,605 mg (1g = 1000 mg)

b) Mass of the solution = m

Volume of the solution = V = 431.3 mL

Mass=density\times Volume

m=d\times V=1.107 g/ml\times 431.3 mL=477.4491 g

Mass of calcium chloride = x

w% = 12.0%

\frac{x}{M}\times 100=12\%

x=12\times \frac{M}{100}=12\times \frac{477.4491 g}{100}=57.29 g

57.29 grams is the mass of calcium chloride in 431.3 mL of a 12.0 wt% solution.

c) Moles of calcium chloride = \frac{57.99 g}{111 g/mol}=0.5161 mol

Molarity(M)=\frac{moles(n)}{V(L)}

V = Volume of the solution in Liters

n = 0.5161 mole

V = 431.3 mL = 0.4313 L

M=\frac{0.5161 mol}{0.4313 L}=1.1967 mol/L

1.1967 mol/L is the formal concentration of calcium chloride in 431.3 mL solution.

6 0
3 years ago
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