Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CHEMGTFINAL78
CHEMGTFINAL
| Question | Answer |
|---|---|
| Activity Series | a list of elements in order of decreasing activity; the activity series of halogens is Fl, Cl, Br, I |
| Catalyst | a substance that increases the rate of reaction by lowering the activation-energy barrier; the catalyst is not used up in the reaction |
| 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) |
| Coefficients | a small whole number that appears in front of a formula in a balanced chemical equation |
| Combination Reaction | a chemical change in which an element or a compo9und reacts with oxygen, often producing energy in the form of heat and light |
| 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 |
| Decomposition Reaction | a chemical change in which a single compound is broken down into two or more simpler products |
| Double Replacement Reaction | a chemical change that involves an exchange of positive ions between two compounds |
| Half Reaction | an equation showing either the oxidation or the reduction that takes place in a redox reaction |
| Ionic Equation | a chemical equation where the electrolytes in aqueous solution are written as dissociated ions |
| Balanced Equation | a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element |
| Net ionic equation | an equation for a reaction in solution showing only those particles that are directly involved in the chemical change |
| Oxidation | a process that involves complete or partial loss of electrons or a gain of oxygen; it results in an increase in the oxidation number of an atom |
| Oxidation Number | a positive or negative number assigned to an atom to indicate its degree of oxidation or reduction; the oxidation number of an uncombined element is zero |
| Oxidizing agent | the substance in a redox reaction that accepts electrons; in the reaction, the oxidizing agent is reduced |
| Redox reaction | another name for an oxidation-reduction reaction |
| Reducing agent | the substance in a redox reaction that donates electrons; in the reaction, the reducing agent is oxidized |
| Reduction | a process that involves a complete or partial gain of electrons or the loss of oxygen; it results in a decrease in the oxidation number of an atom |
| Single replacement reaction | a chemical change in which one element replaces a second element in a compound; also called a displacement reaction |
| Skeleton equation | a chemical equation that does not indicate the relative amounts of reactants and products |
| 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 |
| Synthesis | A+B->AB |
| Decomposition | AB->A+B |
| Single Replacement | A+BC-> B+AC |
| Double Replacement | AB+CD->AD+CB |
| Combustion | A+O2->B |
| Oxidation is the ____ of electrons | loss |
| Reduction is the ____ of electrons | gain |
| Substance reduced is the ______ agent | oxidizing |
| Substance oxidized is the ______ | reducing |
| Balancing Redox Reactions | BOHEC |
| Actual yield | The quantity of a product that is obtained from a chemical reaction |
| Atomic mass | average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally-occurring element |
| Avogadro's number | Avogadro's number is the number of particles found in one mole of a substance 6.02x10^23 |
| Empirical formula | smalles whole # ratio |
| Excess reactant | |
| Limiting reactant | |
| Molar mass | The mass of one mole of a substance, usually expressed in grams or kilograms g/mol |
| Mole | a chemical mass unit, defined to be 6.022 x 1023 molecules, atoms, or some other unit. |
| Molecular formula | An expression which states the number and type of atoms present in a molecule of a substance (find factor and multiply by empirical formula) |
| Mole ratio | ratio between the amounts in moles of any two compounds involved in a chemical reaction |
| Percent composition | percentage by mass of each element in a compound |
| Percent yield | the experimental yield divided by theoretical yield multiplied by 100% actual yield/theoretical yield |
| Representative particle | |
| Stoichiometry | the study of the relationships or ratios between two or more substances undergoing a physical or chemical change (chemical reaction) |
| STP | Standard Temperature and Pressure: 273 K, 1 atm |
| Theoretical Yield | the quantity of a product obtained from the complete conversion of the limiting reactant in a chemical reaction |
| Experimental % COmp | Mass of decomposed sample/ mass of sample |
| Theoretical % Comp | Atomic mass of elements/ total mass of compound |
Created by:
AlanaR
Popular Chemistry sets