Reading...
Play button
Play button
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;
17 Cards in this Set
- Front
- Back
|
exothermic reaction
|
a reaction that gives off thermal energy
|
|
|
combination reactions
|
reactions that combine two or more substances into one or more complex compound
|
|
|
endothermic reaction
|
a reaction that requires thermal energy
|
|
|
oxidation numbers
|
symbols that indicate the number of electrons that an element gains or loses as it bonds
|
|
|
products
|
a substance (on the right hand side of the equation) that is produced by a chemical change
|
|
|
coefficient
|
a number used as a multiplier in measuring the change in some property of the substance
|
|
|
polyatomic ion
|
a group of several atoms that act as a single charged particle
|
|
|
electrolysis
|
a decomposition reaction that decomposes the reactants by an electric current in solution
|
|
|
subscript
|
a small number placed beside the symbol of an element in a formula to indicate the number of atoms of that element contained in the compound represented by that formula
|
|
|
chemical formula
|
a shorthand method of expressing the makeup of a compound (pure substance)
|
|
|
binary compound
|
a compound that is composed of two different elements
|
|
|
reactant
|
a substance (on the left-hand side of an equation) that undergoes a chemical change
|
|
|
decomposition reactions
|
reactions that decompose of take apart the formula units or molecules of a substance
|
|
|
chemical equations
|
describe the changes that take place during a reaction
|
|
|
single replacement reaction
|
reaction in which one element in an existing compound is replaced by another element
|
|
|
double replacement reactions
|
reaction in which two ionic compounds swap cations and anions with each other
|
|
|
precipitates
|
a solid formed during a reaction; insoluble in water
|
