Q. 3.77 - An Introduction to General, Organic, and Biological Chemistry

Question

Identify each of the following as a physical or chemical property= (3.2)

a. Gold is shiny.

h. Gold melts at $1064{}^{\circ }\mathrm{C}$.

c. Gold is a good conductor of electricity.

d. When gold reacts with sulfur, a block sulfide compound forms.

Step-by-Step Solution

Answer

The chemical property of a material is the qualities given owing to the chemical nature of the substance, while the physical property is the attribute of the substance due to its physical nature.

Step 1: Given information (part a)

The following  sentences: a.

The gold in its physical form.

Step 2: Clarification (Part a)

 Gold is shiny:

The physical look of gold is its gleaming aspect, which is classed as a gold physical attribute.

Step 3: Given information (Part b)

The following sentences are: b.

Gold is form to solid and liquid

Step 4: Explanation (Part b)

Gold melts at$1064°\mathrm{C}$

When gold is melted, its physical condition transforms from solid to liquid. As a result, the melting point of gold is a physical property.

Step 5: Given information (part c)

The following sentences: c.

Gold conducting electricity

Step 6: Explanation (Part c)

Gold is an excellent electrical conductor:

Because gold is a metal with free electrons that can carry electricity and no new substance generated in the process, its ability to conduct electricity is a physical property.

Step 7: Given information (part d)

The following sentences: d.

New compounds are formed.

Step 8: Explanation (Part d)

A black compound is generated when gold interacts with yellow sulphur:

A chemical change occurs when gold and yellow sulphur react, and a new compound is produced. As a result, gold has this chemical characteristic.