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What is the electron pair geometry for BF4?
The electron pair geometry for BF4- is tetrahedral. There are four regions of electron density around the boron atom, consisting of three bonding pairs and one lone pair, leading to a tetrahedral arrangement.
Which pair of solutions would be acidic if mixed in equal quantities?
Hydrochloric acid and acetic acid would be acidic if mixed in equal quantities. Both are strong acids that can fully dissociate in water to release hydrogen ions, resulting in an acidic solution.
Why does a lone pair of electrons occupy more space on an atom?
It doesn't exactly occupy more space, but it has a different shape to a bond pair. In a bond pair we have two positive nuclei, with most of the density of the bonding electron pair between the atoms. The outer nucleus attracts the bond pair outwards from the central atom. In a lone pair there is only the central atom to attract the electrons, so they are pulled in more than the bond pair, producing a fatter, squatter shape. This means that more of the electron density is near the central atom than with a bond pair, which makes it more effective at repelling the other electron pairs. Thus there is a difference in the amount of repulsion between different sorts of pair, meaning that he angles between them are different too, in the order, from greatest to least, lone pair-lone pair, lone pair-bond pair, bond pair-bond pair.
Why nitroso in nitrosobenzene deactivating yet ortho para directing?
Nitroso group (-NO) is deactivating because it withdraws electron density from the benzene ring due to its electronegativity. However, it is ortho para directing because it can donate electrons into the benzene ring through resonance, enhancing the electron density at the ortho and para positions.
Why is ammonia a stronger base than phosphine?
The lone pair of electron of nitrogen in ammonia is easily available for attack of an acid due to absence of 'd' orbital but in phosphorus vacant '3d' orbitals are available so electron pair of phosphorus may shift in '3d' orbitals and not easily available as pair for attack of an acid so phosphine is a weaker base.
What pair of quantities determine the density of matriarch?
The density of a material is determined by its mass and volume. Density is calculated by dividing the mass of an object by its volume.
What is member of a gene pair that determines a specific trait is?
an allele
Which pair of chromesomes determines gender?
Chromosome pair 23 determines the gender of a human. These chromosomes will either be two X's for females, or an X and a Y for males.
What is a pair of scalar quantities?
A pair of scalar quantities are two physical quantities that have only a magnitude or size with no direction. Examples include mass, temperature, and speed. Scalars can be added, subtracted, multiplied, and divided like regular numbers.
What are a pair of vector quantities?
Force and velocity are a pair of vector quantities. Force has both magnitude and direction, while velocity is a vector quantity that describes an object's speed and direction of motion.
One of the pair of chromosomes that determines the sex of an individual?
The 23rd pair in a karyotype shows if it will be male or female
Member of a gene pair that determines a specific trait?
allele
A member of a gene pair that determines a specific trait is?
oblock
A member of a gene pair that determines a specific trait is an?
allele
Is it true or false that the 23rd chromosome pair determines the gender of a child?
TRUE.
A member of a gene pair that determines a specific trait such as an?
look on GOOGLE or YAHOO
What characteristic is used to give a chromosome pair a number?
its usually the size of it and the information that is in the pair
