9.1 All things are made of Atoms

9.2 Chemical Changes/Reactions Get a new substance called a _____________ Has new __________ Bonds between atoms are _______ or _______ _____ ___ ______ of chemical changes – See 9.8 “Product” properties broken formed Look for signs

9.2 Chemical Changes/Reactions Get a new substance called a “Product” Has new properties Bonds between atoms are broken or formed Look for signs of chemical changes – See 9.8

9.3 Classify as Element or Compound based on symbols or Formulas. ElementsCompounds H2H2 Br 2 C Co O2O2 W Kr H2OH2O CO 2 C 6 H 12 O 6 CO FeO 2 Li 2 O C 8 H 10 N 4 O 2

9.3 Classify as Element or Compound based on symbols or Formulas. ElementsCompounds H2H2 H2OH2O Br 2 CO 2 CC 6 H 12 O 6 CoCO O2O2 FeO 2 WLi 2 O KrC 8 H 10 N 4 O 2

9.4 Differentiate between a Mixture and a Compound.  Compound = Two or more ____________ elements that are ___________ combined.  Mixture = A combination of _________ and __________ that are NOT __________ combined. DIFFERENT chemically elements compounds chemically

9.4 Differentiate between a Mixture and a Compound.  Compound = Two or more DIFFERENT elements that are chemically combined.  Mixture = A combination of elements and compounds that are NOT chemically combined.

9.5 The Chemical Makeup of the Atmosphere

9.7 Density g/cm 3 g/ml

9.7 Density

Change of State – Melting, Freezing, Condensation, Evaporation, Boiling Chemical Change Physical Change 9.8 Physical vs. Chemical Change Does not change into new substance! Odor (rotten egg) Heat, flame, fire, light Precipitate Bubbles or Fizzing Color change Get a new substance

Change of State – Melting, Freezing, Condensation, Evaporation, Boiling Does not change into new substance! Affecting a Physical Property Chemical Change Physical Change 9.8 Physical vs. Chemical Change Look for Signs of Chemical Change Odor (rotten egg) Heat, flame, fire, light Precipitate Bubbles or Fizzing Color change Get a new substance

9.9 Properties of an Element from the Periodic Table. 1. Know Reactivity Trends: 2. Know what a Period is: Know Atomic Number and Mass Number: 3. Know that Groups have similar Properties: Place red circle over the Atomic Number Place blue circle over the Mass Number 1. Place red Star above the most reactive metal group on the periodic table 2. Place purple line across a period 1. Place blue Star over the most reactive nonmetal group 3. Place green line on a group

9.9 Properties of an Element from the Periodic Table. 1. Know Reactivity Trends: 2. Know what a Period is: Know Atomic Number and Mass Number: 3. Know that Groups have similar Properties: Place red circle over the Atomic Number Place blue circle over the Mass Number 1. Place red Star above the most reactive metal group on the periodic table 2. Place purple line across a period 1. Place blue Star over the most reactive nonmetal group 3. Place green line on a group

9.10 Identify the reactants and products of a chemical reaction. Reactants Products Reactants = ________________that Products = _________________ by the reaction (arrow points to products). what you start with what is produced

9.10 Identify the reactants and products of a chemical reaction. Reactants Products Reactants = what you start with that Products = what is produced by the reaction (arrow points to products).

9.11 Recognize that in a chemical reaction the mass of the reactants is equal to the mass of the products (Law of Conservation of Mass). 1.) Amount of atoms in Reactants must equal amount of atoms in products! 2.) Use Coefficients to (Balance) make there be same amount of atoms on both sides! 3.) Mass of Product must equal mass of reactants – Literally!!! Example: 46 g Copper + 4 g Oxygen react to produce how many grams of Copper Oxide in the products? 50 grams of Copper Oxide

9.12 Identify the basic properties of acids and bases. Acids: Bases: Taste sour React with metals Release hydroden (H + ) ion Turn Litmus paper Red Taste bitter Feel slippery Releases hydroxide (OH - ) ion Turns Litmus paper Blue

9.12 Identify the basic properties of acids and bases. Acids: Taste sour React with metals Release hydroden (H + ) ion Turn Litmus paper Red Bases: Taste bitter Feel slippery Releases hydroxide (OH - ) ion Turns Litmus paper Blue