Answer:
Perfume is a mixture of fragrant oils in an ethanol/water solvent. The ethanol/water mixture, which is volatile, evaporates from the droplets within a few seconds, leaving behind a droplet of the fragrant compounds in the perfume. These compounds will also eventually evaporate to form a vapor of the fragrant molecules
B) The amount of work done
<span>When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container.
this is the answer .
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Answer: I think the answer is D.
Positively charged particles.
A. A control group is given the experimental treatment.
