When a cup of hot chocolate cools from 90°C to 80°C, which of the
following is happening to the molecules of the liquid?
Select one:
- Their rate of motion is decreasing

-Their average distance from adjacent molecules is increasing

-Their valence electrons are being lost

-Their positions are becomin
a

Will mark brainliest26. which of these statements are true? (3 points)a. gases are compressibleb. gases fill their containers completelyc. the pressure of a gas is independent of the temperatured. gases have masse. gases exert pressuref. the pressure of a gas is dependent on the volumeg. gas pressure results from the collisions between gas particlesh. gases have a definite volume and shape

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?