Unit 1: Matter and The Mole Flashcards
Chemical Properties
Those that can be observed only when there is a change in the COMPOSITION of the substance
Physical Properties
What can be observed without changing its original state.
Physical Change
A change in matter that DOES NOT involve a change in the chemical identity of individual substances
Boiling Point
Physical
Freezing Point
Physical
Melting Point
Physical
Evaporating
Physical
Dissolving/Solubility
Physical
Crystallizing
Physical
Mole/Avogardo’s number
Number of Carbon atoms in exactly 12 grams of Carbon 12
6.022XE23
Representative Particles
Smallest piece of a substance
Chemistry
The science that investigated and explains the structure and properties of matter.
Composition, properties, and the changes
Scientific Method
Systematic approach to answer a question or study a situation
Hypothesis
A possible explanation for what has been observed.
Experiment
A set of controlled observations that test a hypothesis