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NO3- has three resonance structure. One double bond between N and O and another two N - O single bond. Since the double bond can be formed between N and any other O it is said that it has a resonance structure. This means that the true structure of NO3- is not any of this structure, but rather a hybrid of all three. Hence all 3 bond lengths would be identical AND shorter than single bond as it is basically an average between single and double bond. It is of course longer than a double bond

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Which of the following two compounds has the shortest nitrogen-nitrogen bond H2NNH2 or HNNH?

HNNH has the shorter nitrogen-nitrogen bond because it has a triple bond between the nitrogen atoms, which is shorter and stronger than the single bond in H2NNH2.


Identical rock types identical fossils and very similar mountain ranges are found on different continents that are separated by a wide ocean?

This evidence suggests that those continents were once connected as part of a single landmass known as Pangaea. Over time, the continents drifted apart due to the movement of tectonic plates, leading to their current separated positions.


Which is longer carbon-carbon single or double bond?

A carbon-carbon double bond is longer than a carbon-carbon single bond because the presence of the additional pi bond in the double bond results in more electron-electron repulsions, causing the double bond to be longer in length compared to a single bond.


Which is the compound with smallest carbon carbon bond?

The compound with the smallest carbon-carbon bond length is ethyne (C2H2), also known as acetylene. The carbon-carbon bond in ethyne is a triple bond, which is shorter and stronger than single or double bonds.


What proof has led researchers to conclude that the earth once contained a single continent?

The evidence supporting the theory of a single ancient supercontinent, known as Pangaea, includes the matching shapes of the continents' coastlines, similarities in rock formations and fossils across continents, and the distribution of certain plant and animal species. Additionally, geological features such as mountain ranges that seem to align when continents are reassembled support the idea of a supercontinent in the past.

Related Questions

What is The scientific name for identical twins.?

Identical twins (monozygotic) occur when a single egg, fertilized by a single sperm, splits into two identical halves. Two separate babies with identical DNA are formed. Identical twins are always the same sex and blood type. http://www.twin-pregnancy-and-beyond.com/identical-twins-or-fraternal-twins.html


How do you obtain identical copies of a single cell?

By cloning them


Identical twins happen when the two eggs are fertilised?

No. They have to come from the same egg and sperm to have the same DNA (and be identical). Fraternal twins are non identical twins and come from two separate eggs.


Why are identical twins identical and fraternal twins are not?

Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.


Why must any differences between identical twins be controlled only by the environment?

Identical twins have the same DNA - meaning that without the effects of environment they would be identical in every single way.


What is the process of creating a opoulation of genetically identical cells from a single cell?

Cloning


Why are identical twins and fraternal twins not the exact same?

Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.


Do identical twins have the same DNA?

Yes, identical twins have the same DNA because they are formed from a single fertilized egg that splits into two embryos. This means they share the same genetic information and are genetically identical.


How are identities made?

A monozygotic triple pregnancy is event in which identical triplets are conceived. This occurs when a single fertilized egg slits to form three identical babies.


What is a reproduction in which a single parent produces offspring's that are identical to the parent?

This is called "asexual reproduction".


To obtain identical copies of a single cell scientists make one of these?

To obtain identical copies of a single cell, scientists make a clone. This involves the process of producing genetically identical organisms or cells by asexual reproduction, such as in cloning techniques like somatic cell nuclear transfer.


Are identical twins mutations?

Identical twins are not considered mutations. They occur when a single fertilized egg splits into two during early development, resulting in two genetically identical individuals. This process is a natural occurrence and not a mutation.