Question | Answer |
The ratio of the mass of each element to the total mass of the compound | Percent by mass |
A homogeneous mixture | solution |
states that mass is neither created nor destroyed in a chemical reaction | Law of conservation of mass |
States the regardless of the amount, a compound is always composed of the same elements in the same proportion by mass | law of definite proportions |
States that different masses of one element combine with the same relative mass of another element to form different compounds | Law of multiple proportions |
The grid organizing elements into periods and groups | periodic table |
Three physical forms that describe all matter that exists on Earth | States of Matter |
A separation technique that results in the formation of pure solid particles from a solution | crystallization |
A technique that separates the components of a mixture | chromotography |
A form of matter with a constant volume that takes the shape of its container | liquid |
A form of matter with a definite shape and volume | solid |
compare and contrast Chemical & physical properties | each changes the substance on different levels. Chemical alters the composition of the substance while physical just changes the form |
compare and contrast Substance & mixture | A mixture is a combination of substances |
i dentify each property as either physical or chemical. tell weather each physical property is Extensive or Intensive
Color
Tendency to rust
Boiling point
density
Mass
Ability to burn
malleability
ability to conduct electricity | physical / intensive
chemical
Physical/ Intensive
Physical / Intensive
Physical / Extensive
Chemical
Physical / Intensive
Physical / Intensive |
Alloy | Sterling silver |
Element | Gold |
Gas | Methane |
Vapor | Steam |
Compound | Salt |
Homogeneous Mixture | Air |
Element | Aluminum |