Which compound has the highest boiling point?
nacl
h2o
o2
c6h12o6

NaCl

Explanation:

You could just look up the boiling points and compare but you can look for the ionic compounds because ionic compounds tend to have higher boiling points than covalent compounds. NaCl seems to be the only ionic compound.

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.