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Chemical & Physical

physical property A physical property is a characteristic of matter that can be observed and measured without changing the identity or chemical makeup of the substance.
Color We can easily observe the color of a substance by looking at it.
Odor Many substances have a noticeable odor
Size The size of a substance can be measured without altering the chemical makeup of the substance.
Hardness Hardness is the measure of how difficult or easy it is to scratch a substance
Luster Luster describes how light is reflected off the surface of an object. (How shiny is the object?)
Mass Mass is the amount of matter in an object; the same everywhere;(stays the same)
Weight Weight=Mass x Gravity; (weight increases when mass or gravity increases); changes depending on gravity or what planet your on
Density Density is how tightly packed the atoms in an object are.
The boiling point is the point at which a substance changes from a ___________________ to a ______________. Liquid to a Gas
The melting point is the point at which a substance changes from a _________________ to a ____________________. Solid to a Liquid
Solubility is the measure in which an ______________ ________________________________________________. an object dissolves into another object; it can involve solids, liquids, and gases.
Electrical conductivity is the measure __________________________________________________ of material's ability to allow the transport of an electric charge.
chemical property A chemical property is a trait or behavior of a substance that gives it the ability or inability to undergo a chemical change.
Combustibility (Flammability) Combustibility and flammability both mean the ability a substance has to burn.
Combustion is a ___________________ reaction that produces ________________ and _________________. chemical; heat and light
Toxicity is the ability or __________________ of a substance to cause ______________________ effects to ______________________ things. strength; poisonous; living
Reactivity How easily an atom has a chemical reaction with another element.
What causes the odor when milk sours? When milk begins to ferment (break down), it smells bad because of the bacteria that is being formed. Chemicals with a sour odor are released by this bacteria.
What causes the bubbles in a chemical reaction? Some chemical reactions occur and cause a gas to form. The bubbles are the evidence of the gas fumes escaping.
What is a precipitate? It is an insoluble (can’t dissolve) solid that is formed when two liquids combine.
Examples of Physical Properties Malleable; Mass; Metal, Nonmetal, Metalloids; Density; Phase; Color; Ductile; Magnetism; Conductivity; Solubility; size; Luminescence; boiling point; melting point; odor; hardness; luster; ability to dissolve; specific gravity;
Examples of Physical Changes example of dissolving; cutting; changing phases
Examples of Chemical Properties oxidation; flammability; combustibility; toxicity; reactivity; radioactivity;
Examples of Chemical Change formation of compound; example of reacting; example of oxidation; example of toxicity
Created by: kayleek.