Classifying reactions for chem !
(synthesis, decomposition,
single displacement or double displacement)

k2s (aq) + co(no3)2 (aq) → 2kno3 (aq) + cos (s)

3h2 (g) + n2 (g) → 2nh3 (g)

zn (s) + cocl2 (aq) → zncl2 (aq) + co (s)

Which best explains why an iceberg floats?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Which of these is a physical property