An individual with an excellent sense of smell is handed a bottle of perfume. after smelling the perfume, he reports that the perfume contains a predominant smell of roses with a faint touch of vanilla. if the perfume is made from water, rose essence, and a splash of vanilla, it is most likely a. a mixture. b. a gas. c. an element. d. a compound.

A. a mixture.  

Step-by-step explanation:

If the perfume is made from water and anything else, it is a mixture.

B. is wrong, because water is a liquid at room temperature.

C. is wrong, because water is a compound.

D. is wrong, because the perfume is a mixture of water and other compounds.

A. a mixture.

Explanation:

Element is a pure substance which is composed of atoms of similar elements. It can not be decomposed into simpler constituents using chemical reactions.Example: Copper

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present.The components do not combine chemically and hence retain their original properties. Example: perfume made from water, rose essence, and a splash of vanilla.

Thus the perfume is most likely a mixture as different components retain their original properties.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.