Chapter 21 Vocabulary Words
Help!
|
|
||||
|---|---|---|---|---|---|
| Chemical Reaction | A change in which one or more substances are converted into new substances.
🗑
|
||||
| Reactant | The substances that react.
🗑
|
||||
| Product | The new substances that are produced.
🗑
|
||||
| Chemical Equation | A way to describe a chemical reaction using formulas and other symbols.
🗑
|
||||
| Coefficient | The numbers in a chemical equation that represents the number of units of each substance taking part in a chemical reaction.
🗑
|
||||
| Subscript | In a chemical formula, a number below and to the right of a symbol indicating number of atoms.
🗑
|
||||
| Balanced Chemical Equation | This has the same number of atoms of each element on both sides of the equation.
🗑
|
||||
| Combustion Reaction | Occurs when a substance reacts with oxygen to produce energy in the form of heat and light.
🗑
|
||||
| Synthesis Reaction | Two or more substances combine to form another substance.
🗑
|
||||
| Decomposition Reaction | Occurs when one substance breaks down into two or more substances.
🗑
|
||||
| Single-displacement Reaction | When one element replaces another element in a compound.
🗑
|
||||
| Double-displacement Reaction | When the positive ion of one compound replaces the positive ion of the other to form two new compounds.
🗑
|
||||
| Precipitate | An insoluble compound that comes out of solution during a double-displacement reaction.
🗑
|
||||
| Oxidation | The term to describe the loss of electrons in a reaction.
🗑
|
||||
| Reduction | The term to describe the gain of electrons in a reaction.
🗑
|
||||
| Chemical Bond | The force that holds two atoms together.
🗑
|
||||
| Exergonic Reaction | Chemical reactions that release energy.
🗑
|
||||
| Exothermic Reaction | Energy given off in a reaction in the form of heat.
🗑
|
||||
| Endergonic Reaction | Chemical reaction that requires energy to begin.
🗑
|
||||
| Endothermic Reaction | Chemical reaction that requires heat energy to begin.
🗑
|
||||
| Catalyst | A substance that speeds up a chemical reation without being permanently changed itself.
🗑
|
||||
| Inhibitor | A substance that slows down a chemical reaction.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
mrscummings
Popular Physical Science sets