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;
14 Cards in this Set
- Front
- Back
|
chemical equation |
an expression representing a chemical reaction; the formulas of the reactants (on the left) are connected by an arrow with the formulas for the products (on the right) |
|
|
skeleton equation |
a chemical equation that does not indicate the relative amounts of reactants and products |
|
|
catalyst |
a substance that increases the rate of reaction by lowering the activation-energy barrier; the catalyst is not used up in the reaction |
|
|
coefficient |
a small whole number that appears in front of a formula in a balanced chemical equation |
|
|
balanced equation |
a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element |
|
|
combination reaction |
a chemical change in which two or more substances react to form a single new substance; also called a synthesis reaction |
|
|
decomposition reaction |
a chemical change in which a single compound is broken down into 2 or more simpler products |
|
|
single-replacement reaction |
a chemical change in which on element replaces a second element in a compound; also called a displacement reaction |
|
|
activity series |
a list of elements in order of decreasing activity; the activity series of halogens is Fl, Cl, Br, I |
|
|
double-displacement reaction |
a chemical change that involves an exchange of positive ions between 2 compounds |
|
|
combustion reaction |
a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light |
|
|
complete ionic equation |
an equation that shows dissolved ionic compounds as dissolved free ions |
|
|
spectator ion |
an ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction |
|
|
net ionic equation |
an equation for a reaction in solution showing only those particles that are directly involved in the chemical change |
