B) hydrogen gas burns in air.
explanation: the rest are physical properties.
Change in velocity over time is acceleration.
You're finding acceleration .
silver tarnishes is a chemical change
Answer:
It is the intermolecular forces acting between the molecules that cause attractions between them making them liquids or solids. The strength of Van der Waals forces depends primarily on the number of electrons in total in the molecule, so larger molecules will have higher boiling points.
Explanation:
Answer:
Dipole dipole interaction
Explanation:
