Module 5: Chemistry- Reactions and Energy Flashcards
Binary Compounds
Compounds made of only two elements.
Polyatomic Ion
A covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
Synthesis Reaction
A chemical reaction in which two or more substances react to form a single compound.
Decomposition Reaction
A chemical reaction in which a compound breaks down into two or more simpler substances.
Water Electrolysis
The energy provided by the electricity causes water to decompose into hydrogen gas and oxygen gas.
Single Replacement
A chemical reaction in which one element takes the place of another element in a compound.
Double Replacement Reaction
A chemical reaction in which two compounds exchange positive ions and form new compounds.
Combustion Reaction
A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light.
Chemical Energy
The energy stored in chemical bonds.
Mole
An amount of a substance that contains approximately 6.02 x 10 23 particles.
Exothermic Reaction
A chemical reaction that releases energy to its surroundings.
Endothermic Reaction
A chemical reaction that absorbs energy from its surroundings.
