Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Physical change |
A change which does not alter the chemical composition of a substance |
|
|
Chemical change |
A change that alters the chemical composition of a substance |
|
|
Phase Changes and What They’re Called |
Phase changes are changes between the three phases: solid, liquid, and gas. Solid to liquid - melting Liquid to gas - vaporizing Gas to liquid - condensing Liquid to solid - freezing Sublimation is when a phase change skips a step. |
|
|
Kinetic Theory of Matter |
The molecules (or atoms) that make up a substance have space in between them, and are in constant random motion. The hotter the substance, the faster the motion. |
|
|
Formation reaction |
A reaction in which two or more elements react together to form a single compound |
|
|
Decomposition reaction |
A reaction in which the only reactant is a compound, and the products are the elements from which the compound is made |
|
|
Single displacement reaction |
A reaction in which one element or ion in a compound is replaced by a different element or ion |
|
|
Double displacement reaction |
A reaction in which two elements or ions in two different compounds switch places, each becoming part of the other compound |
|
|
Combustion reaction |
The process by which a chemical reacts with oxygen to form one or more products as well as heat and usually light |
|
|
Complete combustion |
A combustion reaction in which the only products are carbon dioxide and water |
|
|
Incomplete combustion |
A combustion reaction in which carbon monoxide and/or elemental carbon are formed in addition to water |
|
|
Temperature conversions |
Degrees F = 9/5 (degrees C) + 32 Degrees C = 5/9 (degrees F - 32) |
|
|
Phase symbols |
(s) = solid (l) = liquid (g) = gas (aq) = aqueous(dissolved in water) |
