List the strongest intermolecular force between the given pairs of molecules, Η Η
Η Η
| |
H - C - C - Ο - Η
and
H - C C Ο Η
.
Η Η
Η Η
O dipole-dipole force
hydrogen bonding
London Dispersion Forces

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?