What do I need to know for the “Descriptive Chemistry Unit?” This review page will have the following setup o What you need to know in the first bullet  Example question in the second bullet Time to begin the review o MEMORIZED the symbols and names for “50” of the most commonly used elements in chemistry   o MEMORIZED the symbols, charges and names for “15-20” of the most common ions and polyatomic ions used in chemistry   o What is the symbol(s) and charge for the following ions/polyatomic ions Iron (II) Chromate Nitrate What is the name for the following ions/polyatomic ions CO3-2 Cu +2 OH- WRITE an (empirical or molecular) formula when given a compounds name or vice versa   o What is the symbol for the following elements Sodium Silver Potassium What is the element name for the following symbols F Cu P What is the formula for the following substances Tin (II)chromate Sulfuric acid Silver chloride Nitrogen dioxide Sodium chlorate What is the name for the following substances CO CuCO3 AgNO3 PbI2 O2 REPRESENT states of matter in a balanced equation with subscripts beside a chemical formula  What is the abbreviation used for the following states of matter Solid Liquid Gas Aqueous o DESCRIBE the “three” indicators that a chemical reaction (change) occurred    o DEFINE the terms products and reactants and DETERMINE who the products and reactants are in a “word equation”  o Indicator one is ……? Indicator two is ……? Indicator three is ……? Who are the products and reactants in the following word equation- “Oxygen gas and solid potassium chloride can be generated by the heating of solid potassium chlorate in a test tube?” Reactant(s) are by name: Reactant(s) are by formula: Product(s) are by name: Product(s) are by formula: Who are the products and reactants in the following word equation- “A gummy bear {sucrose, C12H22O11} when placed into the mouth of a test tube containing heated potassium chlorate burns into carbon dioxide and water” Reactant(s) are by name: Reactant(s) are by formula: Product(s) are by name: Product(s) are by formula: DETERMINE the category of reaction when given a “word equation”  What category of reaction does the reaction from the previous bullet fit into and why? Does the first reaction in the previous bullet fit into decomposition, synthesis or combustion and why? Does the second reaction in the previous bullet fit into decomposition, synthesis or combustion and why? o STATE the law of conservation of mass and USE the atomic theory to explain the law.  o o DEFINE the terms subscript and coefficient and USE them to WRITE a balanced chemical equation for a “word equation”     Define subscript. Define coefficient. Changing which of the two above changes the formula of a compound and why? Balanced equation for reaction “#1”?  Balanced equation for reaction “#2”? WRITE a balanced chemical equation for a “word equation”  o What happens to the number of atoms during a chemical reaction and how does this explain the law of conservation of mass? Write a balanced equation for the following word equation “a copper wire when placed into a test tube containing a solution of silver nitrate has a shiny crystalline substance “grow on it” and the solution goes from colorless to blue? DETERMINE the spectator ions in a reaction and WRITE a net ionic chemical equation for a “word equation”    What does a spectator do at a sporting event? What does a spectator ion do during a chemical reaction? Who watched the reaction in the reaction from the previous bullet? Write a net ionic equation for reaction from the previous bullet.