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Chemical Substances

Intro to Chemsitry

QuestionAnswer
What is a substance? A form of matter that is different from every other form of matter.
What is a chemical reaction? The change that occurs when substances are mixed and new substances are formed.
What is evidence of a chemical reaction? Gas is formedNew solid or liquidColor changeLightSmellTemperature change
What is an element? A fundamental substance that cannot be broken into simpler substances.
What is the periodic table? A display of all the natural and synthesized elements, organized by mass and chemical properties.
How was Mendeleyev able to predict the existence of elements that had not yet been discovered? He organized the elements in rows by mass and in columns by similar properties. The organization resulted in gaps, which allow Medeleyev to predict the mass and chemical properties of the elements that would go in gaps.
What are the elements found in water? Hydrogen, Oxygen
How do you identify substances? Chemical name,Common name, Chemical formula
Created by: prattdianna
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