|
Creado por emma_moran
hace más de 10 años
|
|
Pregunta | Respuesta |
What is a dative bond? | Sharing of two electrons when both electrons are provided by one of the linked atoms? |
What is the atoms that supplies the pair of electrons called? | Donor |
What is the atom that doesn't donate any electrons called? | Acceptor |
Can you distinguish a co-ordinate bond from a normal covalent bond? | NO |
Where are co-ordinate bonds usually found? | Transition metal complex ions, the ammonium ion, the hydroxonium ion, carbon monoxide and nitric acid |
What are the requirements for a dative bond? | The atom acting as the donor must have a lone pair of electrons. The acceptor should have a vacant orbital to accept the electron pair. |
What is an ammonium ion? | NH4+ |
Do co-ordinate compounds have higher or lower boiling points than purely covalent compounds? | HIGHER (lower than ionic) |
Are co-ordinate compounds soluble? | Soluble in non-polar solvents but less soluble in non-polar solvents (can react with water) |
Can co-ordinate compounds conduct electricity? | NO |
What biological molecules depend on co-ordinate bonding? | Haemoglobin, Myoglobin, Vitamin B12, Chlorophyll |
How do some drugs depend on of co-ordinate bonding? | Some act as donors in dative covalent bonds and some act as acceptors for biological donors |
Image:
linear (image/jpg)
|
Shape:Linear Bond Angle: 180 |
Image:
trigonal_planar (image/jpg)
|
Shape: trigonal planar Bond angle: 120 |
Image:
tetrahedral (image/jpg)
|
Shape: tetrahedral Bond angle: 109.5 |
Shape: trigonal bipyramidal Bond angles: 90, 120 | |
Image:
octahedral (image/jpg)
|
Shape: octahedral Bond angle:90 |
If a molecule has lone pairs present what can happen to the shape of the molecule? | The molecules shape becomes distorted due to repulsion between lone pairs and other pairs of electrons |
Image:
pyrimidal (image/jpg)
|
Shape: pyramidal Bond angle: 109.5-2.5=107 |
Image:
angular (image/jpg)
|
Shape: bent planar Bond angle: 109.5-4=104.5 |
Image:
square_planar (image/png)
|
Shape: square planar |
¿Quieres crear tus propias Fichas gratiscon GoConqr? Más información.