A chemical compound may be separated into its elements by how many of the following methods?Physical methods, Chemical methods, filtration, Dissolving

A chemical compound can be separated into its elements using two of the methods mentioned: physical methods and chemical methods.

1. Physical Methods: These methods involve changing the physical state of the compound without altering its chemical composition. Examples include distillation (where a compound is separated based on differences in boiling points of its constituents) and crystallization (where a compound is separated based on differences in solubility).

2. Chemical Methods: These methods involve a chemical reaction that changes the compound into different substances. Examples include electrolysis (where an electric current is used to separate a compound into its elements) and chemical reaction (where a compound is reacted with another substance to form different compounds which can be separated).

Filtration and dissolving are not methods to separate a compound into its elements. Filtration is a technique used to separate solids from liquids or gases, and dissolving is a process where a solute is mixed with a solvent to form a solution. Neither of these processes separate a compound into its individual elements.