Bromine, a liquid at room temperature, has a boiling point of 58°c and a melting point of -7.2°c. bromine can be classifies as a a) compound b)impure substance c)mixture d)pure substance

Option (D) is the correct answer.

Explanation:

A pure substance is defined as a substance that does not contain any kind of impurity and it can be a compound or an element whose composition does not vary.

For example, , etc are all pure substances.

Pure substances have a fixed melting and boiling point.

A compound is defined as a substance that contains different type of atoms that are chemically combined together in a fixed ratio by mass.

An impure substance is defined as a substance that contains some kind of impurity and whose composition also varies.

A mixture is defined as a substance in which two or more substances are present but they are not chemically combined to each other. A mixture can be homogeneous or heterogeneous in nature.

Thus, we can conclude that Bromine can be classified as a pure substance.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )