Chapter 7 Foundations of Chemistry Study Guide Flashcards
Matter
Anything that has mass and takes up space
Substance
A single kind of matter that is pure
Element
A pure substance that cannot be broken down into another substance by chemical or physical means.
Atom
The smallest piece of an element
Molecule
Are formed when groups of two or more atoms create chemical bonds between one another
Compound
Made from two or more elements
Mixture
Are not pure substances
Mass
The amount of matter in an object
The law of Conservation of Mass\Matter
Matter is not created nor is it destroyed during a chemical or physical change
Energy
The ability to do work or cause change
Kinetic Energy
Energy of moving things
Potential Energy
Energy stored in an object because of its position
Physical Change
Any change that results in a change in shape or form
Chemical Change
Happens when a substance is transformed into a different substance
difference between a physical and chemical property
Chemical - ability to change into different substance
Physical - without changing into another substance