BJ Chem Ch 8 Vocab Word Scramble
|
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
Question | Answer |
Represents the number of electrons that an atom in a compound must gain or lose to return to its netral state. | oxidation number |
Covalently bonded groups of atoms that carry a charge. | polyatomic ion |
IUPAC systematic way of naming compounds following rules | nomenclature |
Covalent compounds made up of two (binary) elements. | binary covalent compound |
Use of Greek prefixes to indicate the number of each of the atoms in a binary covalent compound. | Greek prefix system |
Anions which contain oxygen and one other anion (e.g., ClO3- chlorate) | oxyanion |
A compound made up of a cation and an anion where either or both is a polyatomic ion. | polyatomic ionic compound |
Newer system of naming compounds containing metals with more than one oxidation state (e.g., iron II or iron III) | Stock system |
Used for the stock system to indicate the oxidation state of the metal. | Roman numeral system |
Compounds that hold a characteristic amount of water in their crystalline structure. | hydrate |
Compounds without any water in their crystalline structure. | anhydrous |
Acids containing hydrogen and one other element. | binary acid |
Expressions which contain information on a reaction including reactants, products, etc. | chemical equation |
Communicates all the substances involved in a chemical reaction but no information as to amounts. | word equation |
Substances present before a reaction | reactant |
Substances present after a reaction | product |
Chemical equations that follow the law of mass conservation. | balanced chemical equation |
Reactions which can occur forward or backward as indicated by a double arrow or a single arrow with two arrow heads. | reversible reaction |
When a solid falls out of a solution it is called a ___________________. | precipitate |
A substance that changes the rate of the reaction but does not undergo permanent changes themselves. | catalyst |
Combine two or more substances: A + B --> C | synthesis reaction |
Breaks down a substance into two or more substances: AB --> A + B | decomposition reaction |
A reactive element replaces a less reactive element. AB + C --> AC + B | single replacement reaction |
Two partners switch partners: AB + CD --> AD + BC | double replacement reaction |
Ions which occur in both the reactants and products | spectator ion |
The ionic equation minus spectator ions. It only shows the ions that react to form compound(s). | net ionic equation |
Acid which has three elements: hydrogen, oxygen, and another nonmetal. | ternary acid |
An equation which shows all the ions of both the reactants and products, including the spectator ions. | ionic equation |
List of elements in order of reactivity | activity series |
Li, K, Ba, SR, Ca, and Na are (more/less) reactive than Co, Ni, SN, and Pb | more |
I2 is (more/less) than Cl2 | less |
Alkali metals always have a ____ oxidation number. | +1 |
Alkaline-earth metals always have a ____ oxidation number | +2 |
Hydrogen usually has a ___ oxidation number when bonded to a nonmetal and a ___ oxidation number when bonded to a metal. | +1, -1 |
Oxygen always has an oxidation number of -2 unless bonded to ________________ and in the peroxide ion. | flourine |
Halogens generally have an oxidation number of _____ when bonded to metals. | -1 |
The halogen which always has an oxidation number of -1 is ____________ | flourine |
free atoms have an oxidation number of ____ | 0 |
ions have an oxidation number equal to their ______ | charge |
The sum of all oxidation numbers in compounds must equal ____ | zero |
Reaction Type: Oxygen can be driven out of metal oxides and chlorates | decomposition |
Reaction Type: Water is electrolyzed | decomposition |
Reaction Type: Metal hydroxides release gaseous water when heated | decomposition |
Reaction Type: Metal carbonates release carbon dioxide when heated | decomposition |
Reaction Type: Some acids release carbon dioxide and water when heated | decomposition |
Reaction Type: hydrates release heir water molecules when heated sufficiently | decomposition |
Reaction Type: Atoms of active metals can replace less active ions from solutions and compounds | single replacement (cationic) |
Reaction Type: Reactive halogens can replace less reactive halogens that are in solution | single replacement (anionic) |
Reaction Type: Metals and nonmetals other than oxygen form compounds called salts. | synthesis |
Reaction Type: Metals combine with oxygen to form metallic oxides | synthesis |
Reaction Type: Nonmetals react with oxygen to form oxides | synthesis |
Reaction Type: water and metal oxides form metal hydroxides | synthesis |
water and nonmetal oxides combine to form oxyacids | synthesis |
Created by:
MArCHChemBJ
Popular Chemistry sets