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
Vocab- Chap. 13-15
Vocabulary Study Guide for Chapters 13-15
| Question | Answer |
|---|---|
| chemical bonding | the combining of atoms to form molecules or ionic compounds |
| chemical bond | an interaction that holds atoms or ions together |
| valence electron | an electron that is found in the outermost shell of an atom and that determines the atom's chemical properties |
| ionic bond | the attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another |
| ion | a charged particle that forms when an atom or group of atoms gains or loses one or more electrons |
| crystal lattice | the regular pattern in which a crystal is arranged |
| covalent bond | a bond formed when atoms share one or more pairs of electrons |
| molecule | a group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties |
| chemical reaction | the process by which one or more substances change to produce one or more different substances |
| precipitate | a solid that is produced as a result of a chemical reaction in solution |
| chemical formula | a combination of chemical symbols and numbers to represent a substance |
| chemical equation | a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products |
| reactant | a substance or molecule that participates in a chemical reaction |
| product | a substance that forms in a chemical reaction |
| law of conservation of mass | the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes |
| synthesis reaction | a reaction in which two or more substances combine to form a new compound |
| decomposition reaction | a reaction in which a single compound breaks down to form two or more simpler substances |
| single-displacement reaction | a reaction in which one element takes the place of another element in a compound |
| double-displacement reaction | a reaction in which a gas, a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds |
| exothermic reaction | a chemical reaction in which energy is released to the surroundings as heat |
| endothermic reaction | a chemical reaction that requires energy input |
| law of conservation of energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
| activation energy | the minimum amount of energy required to start a chemical reaction |
| inhibitor | a substance that slows down or stops a chemical reaction |
| catalyst | a substance that changes the rate of a chemical reaction without being used up or changed very much |
| ionic compound | a compound made of oppositely charged ions |
| covalent compound | a chemical compound that is formed by the sharing of electrons |
| acid | any compound that increases the number of hydronium ions when dissolved in water |
| indicator | a compound that can reversibly change color depending on conditions such as pH |
| base | any compound that increases the number of hydroxide ions when dissolved in water |
| neutralization reaction | the reaction of an acid and a base to form a neutral solution of water and a salt |
| pH | a value that is used to express the acidity or basicity (alkalinity) of a system |
| salt | an ionic compound that forms when a metal atom replaces the hydrogen of an acid |
| organic compound | a covalently bonded compound that contains carbon |
| hydrocarbon | an organic compound composed only of carbon and hydrogen |
| carbohydrate | a class of energy-giving nutrients that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen |
| lipid | a fat molecule or a molecule that has similar properties; examples include oils, waxes, and steroids |
| protein | a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body |
| nucleic acid | a molecule made up of subunits called nucleotides |
Created by:
EMichelle19
Popular Physical Science sets