WGU D425 -INTO TO CHEMISTRY
What is the simplest substance? - ANSWER-elements
periodic table - ANSWER-displays all known element according to similarities between elements' properties.
What makes up all of the material in the universe? - ANSWER-Matter
What's an example of a pure substances? - ANSWER-Aluminum
What's a compound? - ANSWER-A substance made up of 2 or more different elements joined together.
Chemistry - ANSWER-the study of matter and its interactions
Matter - ANSWER-anything that has mass and takes up physical space.
Atom - ANSWER-the smallest units of matter that retain the properties of that matter.
Mass - ANSWER-A measure of the amount of matter that an object contains.
Volume - ANSWER-The amount of physical space a substance or object occupies.
pure substance - ANSWER-A type of matter with a constant composition.
subatomic particles - ANSWER-electron, protons, and neutrons.
Elements - ANSWER-atoms of the same type grouped together.
What's an example of a compound? - ANSWER-H2O, table salt
What is a mixture? - ANSWER-A combination of 2 or more pure substances that retains its own identity & properties.
What are the 2 types of Mixtures? - ANSWER-homogeneous and heterogeneous mixtures
What's an example of a mixture? - ANSWER-Salt water
Can matter be a mixture or pure substance? - ANSWER-Yes, it can be both.
What is a homogeneous mixture? - ANSWER-a mixture that is the same throughout
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