Answer:
im 99% sure it's 175.
Explanation:
keep trucking, i know school is hard but you're doing amazing
Then I would guess the answer is D because Na2OH is much more common and stable than Na2O is <span />
Answer: C) Bent or angular, polar
Explanation:
The central atom oxygen has two lone pairs and two bond pairs in . The number of electron pairs are 4, that means the hybridization will be and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.
The compound is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.
#1...Evaporation
#2....Gas
Kg = 3.20 x 10^4 troyounces x 0.0311kg/1 troy ounce = 995.2 kg