For Each of the Following, Indicate Whether a Physical or Chemical

question 91

Short Answer

For each of the following, indicate whether a physical or chemical change occurs.
A)Solid table salt is obtained from the evaporation of seawater.
B)Alcohol is boiled off from rum.
C)Mercury vapor is generated by heating mercury(II) oxide.
D)Oxygen is removed from an iron oxide containing Fe₂O₃.
E)Gold metal is separated from river sand by panning.

• A)Solid table salt is obtained from the evaporation of seawater.
• B)Alcohol is boiled off from rum.
• C)Mercury vapor is generated by heating mercury(II) oxide.
• D)Oxygen is removed from an iron oxide containing Fe₂O₃.
• E)Gold metal is separated from river sand by panning.

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Definitions:

Stock Prices

The cost of purchasing a share of ownership in a company, which can fluctuate based on market conditions.

Natural Resources

Materials or substances occurring in nature which can be exploited for economic gain.

Payment

The transfer of money or goods from one party to another in exchange for goods, services, or to fulfill a legal obligation.

Rent

Payment to resource owners for the use of their natural resources.