Question

analyze and interpret data

1. theme cause and effect based on my observations in parts i and ii, water sticks to itself (more/less) than rubbing alcohol does.

provide evidence to support your answer.

Explanation:

Step1: Recall properties of water and rubbing alcohol

Water has stronger cohesive forces due to hydrogen - bonding. Rubbing alcohol (isopropyl alcohol) has weaker intermolecular forces compared to water's hydrogen - bonding. Cohesive forces are the forces between like molecules.

Step2: Determine the answer

Since water has stronger cohesive forces than rubbing alcohol, water sticks to itself more than rubbing alcohol does.

Answer:

more. Evidence: Water has strong hydrogen - bonding between its molecules which is a type of cohesive force, while rubbing alcohol (isopropyl alcohol) has weaker intermolecular forces such as dipole - dipole and London dispersion forces, so water has greater cohesive tendency and sticks to itself more.