Question #16ca9
2 Answers
Chemical property as opposed to physical property:
Explanation:
A physical property of a material or compound has to do with things like density, hardness, phase (liquid, solid or gaseous).
A chemical property tells us about how it reacts to other chemicals, like air, water, acids and bases, etc.
Example:
Though charcoal and diamond have quite distinct physical (and financial!) properties, chemically they are just pure carbon. They both burn to form
A property of a substance relating to its chemical reactivity - https://www.merriam-webster.com/dictionary/chemical%20property
Explanation:
A property of an element or substance that is determined by its atomic structure and its interaction or reaction with other elements that result in a new atomic structure and possibly different physical properties as well.
Some examples:
Evidence of Chemical Properties -
Oxygen gas supports combustion. Oxygen gas is 'consumed' in a combustion reaction by combining with other elements - usually carbon and hydrogen in combustion. Its composition (electronic structure) and identity are changed (part of a new compound - water and carbon dioxide).
Fertilizers used to increase agricultural production. The fertilizer is consumed by the growing plants; it is turned into vegetable matter (different composition).
Thorium is a radioactive element. When thorium undergoes nuclear decay, the products are chemically different substances.
Evidence of Physical Properties -
Water boils at a temperature below 100°C at high elevations. The measurement of the boiling point of water does not change its identity or composition.
Gold is denser than copper. The measurement of the densities of gold and copper does not change their composition.
