1 Vocabulary 2 Chemical Equations 3 Balancing Act 4 All About Energy 5 It Matters! 6 Changes in Matter 7 Chemical Vocabulary Equations Balancing Act All About Energy It Matters! Changes in Matter $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500 8 Kool-Aid is an example 9 What is a mixture or a solution? 10 Force that holds atoms together in a molecule 11 What is a chemical bond? 12 Used to represent a compound 13 What is a chemical formula? 14 Amount of material in a given volume of another material 15 What is concentration? 16 Helps control the rate of a chemical reaction without being changed itself 17 What is a catalyst or enzyme? 18 Reactants used to make 2H2O 19 What is 2H2 & O2? 20 Symbol for YIELDS in a chemical reaction 21 What is a horizontal arrow ? 22 States that the amount of mass in a chemical reaction does NOT change 23 What is Conservation of Mass? 24 25 H + Cl HCl is this type of chemical reaction 26 What is Synthesis? 27 Chemical reaction that is the REVERSE of a Synthesis reaction 28 What is Decomposition? 29 Number written in front of a formula to balance an equation 30 What is a Coefficient? 31 Balanced equation for: Fe + HCl FeCl2 + H2 32 What is: Fe + 2HCl ? FeCl2 + H2 33 Total number of atoms in the molecule 2Fe2O3 34 What is ten? 35 Balanced equation showing hydrogen (H2) and oxygen (O2) forming water when electricity passes through the water 36 What is: 2H2O 2H2 + O2? 37 Number of atoms of Copper (Cu), Sulfur (S), Oxygen (O), and hydrogen (H) present as PRODUCTS in the equation: CuO + H2SO4 CuSO4 + H2O 38 What is 1 copper, 1 sulfur, 2 hydrogens, and 5 oxygens? 39 Energy is stored here in a chemical compound 40 What are chemical bonds? 41 Reactions, such as burning, that release energy 42 What are exothermic reactions? 43 Energy required to start a reaction 44 What is Activation energy? 45 Type of reaction in which the products contain more energy than the reactants 46 What is an endothermic reaction? 47 Type of energy reaction shown by this graph: 48 What is an exothermic reaction? 49 Solid that forms from a solution in a chemical reaction 50 What is a precipitate? 51 Two or more elements chemically combined in a specific ratio 52 What is a compound? 53 H2, H2O, and H2SO4 are examples of these 54 What are molecules? 55 Indicates how many atoms of each element are present in a molecule 56 What is a subscript? 57 Water stops fires by keeping fuel from coming into contact with this 58 What is oxygen? 59 Iron rusting is this type of change 60 What is a chemical change? 61 Making lemonade is this type of change 62 What is a physical change? 63 Used to slow down a chemical reaction 64 What is an inhibitor? 65 Adding heat has this effect on a reaction 66 What is SPEED UP the reaction? 67 The effect that decreasing surface area has on the rate of a reaction 68 What is SLOW or DECREASE the rate of the reaction? 69 Final Jeopardy 70 Type of Reaction 71 2NaCl + H2SO4 ---> Na2SO4 + 2HCl 72 What is a Double Replacement? 73 74