Enthalpy Changes Unit Conversion - Easy Unit Conversion - Hard Stoich. - Easy Stoich - Hard 10 20 30 40 50

Enthalpy Changes - 10 To write a balanced equation with energy for an endothermic reaction, which side would you add your energy to?

Enthalpy Changes - 10 Reactants Side

Enthalpy Changes - 20 To write a balanced equation with energy for a reaction that releases heat/energy, which side would you add energy to?

Enthalpy Changes - 20 Products Side

Enthalpy Changes - 30 Balance the following equation with energy: 1 Pb(NO3)2 + 2 KI  2 K(NO3) + 1 PbI2 Exothermic Reaction with a 372 kJ enthalpy change

1 Pb(NO3)2 + 2 KI  2 K(NO3) + 1 PbI2 + 372 kJ Enthalpy Changes – 30 1 Pb(NO3)2 + 2 KI  2 K(NO3) + 1 PbI2 + 372 kJ

Enthalpy Changes - 40 Balance the following equation with energy: 1 C2H5OH + 3 O2  2 CO2 + 3 H2O This reaction absorbed 934 kJ of energy

Enthalpy Changes – 40 934 kJ + 1 C2H5OH + 3 O2  2 CO2 + 3 H2O

Enthalpy Changes - 50 Balance the following equation: 1 HCl + 1 NaOH  1 H2O + 1 NaCl This reaction had a starting energy of 380 kJ. After the reaction, the products’ ending energy was 220 kJ.

Enthalpy Changes – 50 1 HCl + 1 NaOH  1 H2O + 1 NaCl + 160 kJ

Unit Conversion - Easy - 10 Convert 16 miles into kilometers 1 mile = 1.61 km

Unit Conversion - Easy – 10

Unit Conversion - Easy - 20 Convert 9302 milliliters into liters 1 L = 1000 mL

Unit Conversion - Easy – 20

Unit Conversion - Easy - 30 Convert 20 hours into seconds

Unit Conversion - Easy – 30

Unit Conversion - Easy - 40 Convert 2087800 milligrams into kilograms 1000 mg = 1 g, 1000 g = 1 kg

Unit Conversion - Easy – 40

Unit Conversion - Easy - 50 Convert 50 miles per hour into miles per second

Unit Conversion - Easy – 50

Unit Conversion - Hard - 10 How many ’s are in 5 *? 3 * = 7 

Unit Conversion - Hard – 10

Unit Conversion - Hard - 20 Convert 9 miles per hour into kilometers per minute 1 mile = 1.61 km

Unit Conversion - Hard – 20

Unit Conversion - Hard - 30 In the land of Hskdiz, a man wants to know how many quertizes he has if he has 23 jatyrs. The following conversions in the world of Hskdiz are as follows: 18 jatyrs = 3 yakators, 7 yakators = 2 quertizes

Unit Conversion - Hard – 30

Unit Conversion - Hard - 40 A man drinks 4 sodas per 15 hamburgers he eats. Each of his hamburgers contains 95 poppy seeds. How many poppy seeds does he eat if he drinks 9 sodas?

Unit Conversion - Hard – 40

Unit Conversion - Hard - 50 A lethal dose of caffeine for humans is 150 mg caffeine per 1 kg of weight, or 150 mg/kg. If a cup of coffee contains 95 mg of caffeine, how many cups would a 165 pound person have to drink in before reaching the lethal dose? 1 kilogram = 2.20 pounds

Unit Conversion - Hard – 50

Stoich. - Easy - 10 For the equation: 2 H2 + 1 O2  2 H2O What is the ratio of oxygen to water?

Stoich. - Easy – 10 1:2

Stoich. - Easy - 20 For the equation: 2 H2 + 1 O2  2 H2O Convert 2 moles of H2 into moles of H2O

Stoich. - Easy – 20

Stoich. - Easy - 30 For the equation: 2 H2 + 1 O2  2 H2O Convert 4 moles of O2 into moles of H2

Stoich. - Easy – 30

Stoich. - Easy - 40 Convert 20 grams of H2O into moles of H2O

Stoich. - Easy – 40

Stoich. - Easy - 50 Convert 64 grams of O2 into molecules of O2

Stoich. - Easy – 50

Stoich. - Hard - 10 For the equation: 2 H2 + 1 O2  2 H2O Convert 2 mol of H2 into grams of H2O

Stoich. - Hard – 10

Stoich. - Hard - 20 For the following equation: 1 C6H10O5 + 6 O2  6 CO2 + 5 H2O Convert 9.1 grams of O2 into mols CO2

Stoich. - Hard – 20

Stoich. - Hard - 30 For the following equation: 1 C6H10O5 + 6 O2  6 CO2 + 5 H2O Convert 3.4 grams of H2O into grams of O2

Stoich. - Hard – 30

Stoich. - Hard - 40 For the equation: 1 HCl + 1 NaOH  1 H2O + 1 NaCl Determine the grams of NaCl formed if using 60 mL of a 4 M NaOH solution

Stoich. - Hard – 40

Stoich. - Hard - 50 For the equation: 2 H2 + 1 O2  2 H2O You have 10 grams of H2 and 15 grams of O2. Determine the limiting reagent.

Stoich. - Hard – 50