Janice mixed an orange solution of sodium sulfide with a clear solution of hydrochloric acid. She noticed after a minute that the
solution smelled something like rotten eggs.
What could she reasonably infer from the odor released by the solution?
A. Hydrochloric acid must smell like rotton eggs.
B.
A chemical reaction may have occurred.
C.
A chemical reaction must have occurred.
D. Chemical changes always produce odors.

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explanation:

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .