Structures of Matter
The smallest unit of matter which has properties of a chemical element.
What is an atom?
A process that involves the rearrangement of atoms to form new substances.
What is a chemical reaction?
Matter can not be _____________ or ______________.
What is created, destroyed OR made, lost.
The ratio of mass per unit of volume (g/mL)
What is density?
A group of atoms held together by chemical bonds
What is a molecule?
These are the ingredients of a reaction; they are on the left side of the arrow.
What are reactants?
When there are the same number of each type of atom on the reactant side as the product side the equation is __________
What is balanced?
A precipitate
What is a new solid forming (or another name for solid)
Has a definite volume but not a definite shape
What is a liquid?
The model of a chemical reaction using symbols and chemical formulas.
What is a chemical equation?
A change in shade could mean
This affects the melting or boiling point of substances at various altitudes
What is pressure?
When two or more different atoms are joined together
What is a compound?
List at least 1 indicator of a chemical change.
What are color change, gas is produced (bubbles), a precipitate (solid) is formed, odor change, or Release/absorption of energy (temperature change)
Chemical Equation for Water
H20
A chemical Reaction that bubbles/fizzing
Gas production
A substance that cannot physically be broken down into smaller parts
What is a pure substance?
When something loses heat, what type of energy is lost as well?
Kinetic Energy
Chemical Equation for Sodium
NaCl
Structures of Matter
Liquid, gas, and solid