Answer:
The particle model does not take into account: the size and shape of particles. the space between particles.
The 2 parts or components that make up a solution would be the solute and the solvent.
A MOLECULE
A molecule is a true representative of a covalent bond.
Answer:
Explanation: Q1 = mc(ice) ΔT (ice warms)
Q2 = ms (ice melts)
Q3 = mc((water) ΔT (water warms)
Q4 = mr (water boils)
Q5 = mc(vapour)ΔT