Question

How does changing the amount of one substance affect a mixtures identity and a compounds identity iscience?

Answer 1

Explanation:

A compound is defined as follows.

• Compounds are pure substance.
• The atoms bonded in a compound are in specific proportion.
• A compound is formed by chemical combination.
• For a compound, melting point and boiling point is defined.

A mixture is defined as follows.

• Mixtures are impure substance.
• The bonded atoms in a mixture are in any proportion.
• A mixture is formed by physical combination.
• For a mixture, melting point and boiling point is not defined.

On changing the amount of one substance will affect the formation of compound as a compound requires atoms to be bonded in a specific proportion. Whereas changing the amount of one substance will not affect the formation of mixtures  as atoms can be bonded in any proportion in a mixture.

Answer 2

According to the Law of Definite Proportions from Dalton's Atomic Theory, every compound has a fixed ratio of the mass or moles of its individual elements. This is obeyed by balancing the reactions through stoichiometric coefficients. When you increase the concentration of one substance by adding its amount, then, the other elements would also increase in order to maintain that fixed ratio.