Bell Ringer 9-4-09 What is the force that holds atoms together called? When two or more substances are mixed together but NOT CHEMICALLY COMBINED!! When two or more substances are mixed together and are CHEMICALLY COMBINED! The symbols that represent compounds is called the ____________. Mass divided by volume = ___________
Chapter 2 Vocabulary Review
A change in a substance that forms a new substance
The type of mixture where the different parts can be seen
A measure of the force of gravity on an object
The amount of space that matter takes up
A change where energy is absorbed (taken IN)
A measure of the amount of matter in an object
When two or more substances are mixed together but not chemically combined
A change in a substance’s form or appearance that does not form a new substance
The force that holds atoms together (attraction)
The type of mixture in which the parts are evenly mixed and you cannot see the different parts
Matter cannot be created or destroyed
A combination of symbols that represent the elements in a compound and their ratios
Anything that has mass and takes up space
System of units scientists use worldwide to measure the properties of matter
Mass divided by volume
The smallest piece of matter
A change where energy is given off (exits)
When two or more substances are mixed together and are chemically combined
Work on Chapter 2 Review p. 65-66 #1-21 (omit 15, 18) After quiz… Work on Chapter 2 Review p. 65-66 #1-21 (omit 15, 18)