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.

i am going to put the answers in order i dint feel like typing it out so yeah

a

d

c

b

b

b

a

d

a

b

c

c

c

b

d

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !