Answer:
a) [GaCl4]^- Tetrahedral
[SbCl4]^- See saw
b) [SbCl2]^+ [GaCl4]^-
Explanation:
If we look at the anion, [GaCl4]^-, we can see that it contains four electron domains and no lone pairs so we usually expect it to be in a terahedral geometry.
Looking at [SbCl4]^-, there are five electron domains with one lone pair. It is usually expected to exhibit a seesaw molecular geometry.
[SbCl2]^+ (18 valence electrons) is known to possess a bent geometry(due to the presence of a lone pair of electrons on the central atom, Sb) while [GaCl2]^+ (16 valence electrons) is known to possess a linear geometry.
Since it was stated in the question that the cation must posses a bent geometry, then the correct structure is; [SbCl2]^+ [GaCl4]^-
Answer:
1 mole FeCr2/ 1 mole FeCr2O4
Explanation:
We have to write down the equation of the reaction before we can answer the question;
2C(s) + FeCr2O4(s) -------> FeCr2(s) + 2CO2(g)
By inspection of this reaction equation, we can clearly see that the mole ratio of the reactants and products is 2:1:1:2.
Specifically, the ratio of chromites to ferrochrome is 1:1
Hence;
The mole ration required to convert chromites to ferrochrome is;
1 mole FeCr2/ 1 mole FeCr2O4
It should be potential energy!!!
The density of water is about 1kg/m³, therefore is the substance has a density of less than 1kg/m³ then it will most likely float however if it is more than 1kg/m³ then it will most likely sink.
They are different substances because in the weight and size, they are different.
in weight gas weighs nothing but every solid is different.
same with liquids.
