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Chemical+Physical

QuestionAnswer
physical property These characteristics can be observed without changing the identity of a substance.
color Chemical change
many substances have this odor
Hardness how easily it is to scratch a surface
Luster How light is reflected off the surface of an object
Mass The amount of matter of an object
Boiling point When Liquid changes to gas
Melting Point When Solid Turns to Liquid
Solubility The measure of an object dissolves into another object
Conductivity The ability to Transport an Electrical charge
Chemical property A trait or behavior that can't change
Reactivity How easily an atom has a chemical reaction to another element
Reactivity is depended on Valence shells
Combustibility The ability for a substance to catch Fire
Toxicity the ability that causes Poisonous effects to living things
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.
Mass Stays the same
Weight Changes depended on Gravity
Created by: Destin Skelf
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