Answer:
I think the answer would have to be D
KBr + Fs won't make a reaction because KBr is stable with an octet.
Bi+O2 probably won't occur because the O2 has a stable octet as well/
Answer: The distillation flask being heated in a heating mantle. The vapors condense and drip from the condenser into the flask. As the distillate begins to drop from the condenser, the temperature observed on the thermometer should be changing steadily.
Explanation:
answer above
Answer: Volume required is 0.115 L or 115 ml
Explanation:
moles of
= 
The balanced chemical equation is:

1 mole of
requires = 1 mole of HCl
Thus 0.015 mol of
requires =
mole of HCl
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
where,
n = moles of solute
= volume of solution in L


Thus volume required is 0.115 l or 115 ml