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
Chemistry
Chemical Reactions
| Term | Definition |
|---|---|
| Chemical Reactions | a process in which the physical and chemical properties of the original substances change as new substances with different chemical and physical properties are formed |
| The properties and energies of the substances always change when, | a chemical reaction take place |
| Reactant | substance that enters into a chemical reaction, a starting substance in a chemical reaction |
| Product | a substance formed or produced by a chemical reaction |
| Coefficient | the big number in front of symbols/formula |
| What does the arrow mean? | yields or produces |
| Exothermic | energy is given off (something that is burning or gives off light) |
| Endothermic | energy is absorbed (photosynthesis or test tube gets colder) |
| Activation Energy | the energy needed to form short-lived, highly energetic, extremely unstable, intermediate molecules that are rearranged to form products in the chemical reaction |
| In order for a chemical reaction to occur | the reactants must have the ability to combine with substances to form products |
| An atom bonds with another atom | to complete its outermost energy level |
| Atoms can be | neither created nor destroyed |
| Evidence Of Chemical Reaction | ~precipitate produced ~unexpected color change ~light emitted ~gas released/bubbles ~energy change ~temp increase/decrease due to absorption or release of heat |
| Catalyst | substance that speeds up the rate of a reaction but is not used up in the reaction |
| All metals | are singular |
| Non noble gases are | diatomic |
| The diatomic gases are | N2, O2, F2, Cl2, Br2, I2, H2 |
| How many types of basic chemical reactions are there? | 5 |
| What are the five reactions? | combination (synthesis) decomposition single replacement double replacement combustion |
| Synthesis | sometimes called combination, two or more simple substances combine to form a new, more complex substance |
| Metallic oxides react with water | to form bases |
| Decomposition | a complex substance breaks down into two or more simpler substances |
| Combustion | also called an oxidation reaction |
| Single Displacement | one element replaces another element in a compound |
| Double Displacement | different atoms in two different compounds replace each other |
| Aqueous | whenever something is dissolved in water |
| Precipitate | insoluble solid that separates form solution |
| Net Ionic Equation | a chemical equation that involves compounds dissolved in water |
| Net Ionic Equation Shows | all the soluble ionic solutions as ions |
| Spectator Ions | there are ions that do not take part in a chemical reaction and are found in solution before the reaction and after they do not participate |
| Molecular | two nonmetals bonded together cannot dissociate into ions |
| Ionic | metal + nonmetals contains polyatomic ions, always dissociate into ions if aqueous |
Created by:
jordinlevy
Popular Chemistry sets