Chemical…JEOPARDY!

Chemical Jeopardy Atoms More Atoms Empirical Formulas Stoichio- metry Limiting Reagents Potpourri

Atoms 100 These particles are responsible for most of the mass of an atom. What are protons and neutrons? Chem is try Chem is try

Atoms 200 An atom of phosphorous (P) would have this charge if it gained three electrons. What is -3? Chem is try Chem is try

Atoms 400 An alpha particle is composed of two protons and two neutrons. If an atom of 224 Ra emits two alpha particles, this atom will result. What is 216 Po? Chem is try Chem is try

Atoms Fe 2+ has this many protons, neutrons, and electrons What are 26, 30, and 24? Chem is try Chem is try

Molarity 500 Describe what is going on here: What is Rutherford’s Gold Foil Experiment ? Chem is try Chem is try

More Atoms 100 This is the molar mass of the amino acid glycine, C 2 H 6 NO 2 What is 76 g/mol? Chem is try Chem is try

More Atoms 200 This is the molar mass of Cu(NO 3 ) 2 What is g/mol? Chem is try Chem is try

More Atoms 300 There are this many molecules of glucose (C 6 H 12 O 6 ) in 1.50 g of the substance? What are 5.0 x 10^21 molecules? Chem is try Chem is try

More Atoms 400 There are this many atoms of hydrogen in g of the gas. Remember, hydrogen is a diatomic molecule. What are ________ atoms H? Chem is try Chem is try

More Atoms 500 What is going on here, and why do we care about it when we turn on the TV? Next:

Empirical Formulas 100 This is the percent of oxygen in KMnO 4. What is 40.5%? Chem is try Chem is try

Empirical Formulas 200 Free hydrgoen gas can be obtained from ethyl alcohol (C 2 H 5 OH). This many grams can be obtained from 150.0g of the alcohol, What are 19.6 g? Chem is try Chem is try

Empirical Formulas 300 This is the empirical formula of Erythrose, C 4 H 8 O 4. What is CH 2 O? Chem is try Chem is try

Empirical Formulas 400 A sample of the mineral ore ilmenite contains 5.41 g iron, 4.64 g titanium, and 4.65 g oxygen. This is the empirical formula of the ore. What is FeTiO 3 ? Chem is try Chem is try

Empirical Formulas 500 Analysis of 100g of Vitamin C (ascorbic acid) reveals that it has the following elemental composition: g C, 4.58 g H, and g O. What is the empirical formula for Vitamin C? What is C 3 H 4 O 3 ? Chem is try Chem is try

Stoichiometry 100 This is the first step in any stoichiometry problem. What is balancing the equation? Chem is try Chem is try

Stoichiometry 200 This is the balanced form of the following equation: LiOH + CO 2  Li 2 CO 3 + H 2 O What is 2LiOH + CO 2  Li 2 CO 3 + H 2 O? Chem is try Chem is try

Stoichiometry moles of nitrogen will react with this many moles of hydrogen in the following reaction, called the Haber Process: N 2 + H 2  NH 3 What are 1.35 moles H 2 ? Chem is try Chem is try

Stoichiometry 400 This many grams of carbon dioxide will form from the complete combustion of 25.0g butene, C 4 H 10. What are _____ g? Chem is try Chem is try

Stoichiometry x 10^9 kg of CO 2 are produced annually. If you assume it all came from the combustion of gasoline (octane), this is how much octane combusted. What is a lot of octane? Chem is try Chem is try

Limiting Reagents 100 Upon completion of the reaction below, this amount of the limiting reagent, B, will be left remaining: A + B  C + D What is none? Chem is try Chem is try

Limiting Reagents 200 True or False: the limiting reagent is always the reactant present in smaller amounts? What is false – you must consider stoichiometry as well? Chem is try Chem is try

Limiting Reagents 300 Magnesium and hydrochloric acid react as shown below. If you add a strip of Mg to a test tube of HCl and the metal completely disappears, this is the limiting reagent: Mg + HCl  H 2 + MgCl 2 What is magnesium? Chem is try Chem is try

Limiting Reagents 400 This is the mass of nitrogen dioxide that could be produced from the reaction of 30.0g of NO and 30.0g of O 2 : NO + O 2  NO 2 What are ______g NO 2 ? Chem is try Chem is try

Limiting Reagents 500 This is the mass of excess reagent left when 100.0g glucose, C 6 H 12 O 6, reacts with g O 2. What are ______g glucose? Chem is try Chem is try

Potpourri 100 Gram pa Simpson’s new hybrid car now gets 4.17 furlongs to the quart. This is the fuel efficiency of his car in kilometers per liter when 1 furlong = 7920 in, 1 in = 2.54 cm, 1 quart = 32 ounces, and 1 ounce = mL What is km/L Chem is try Chem is try

Potpourri 200 This element is formed when 235 U gives off three alpha particles and later emits two beta particles (formed from the decomposition of a neutron into a proton and electron). What is 223 Ra (radium)? Chem is try Chem is try

Potpourri 300 In terms of the Bonds, James Bonds between atoms, explain where the heat produced in an exothermic reaction comes from. Products have lower Ep than reactants. Change in Ep is released as heat. Chem is try Chem is try

Potpourri 400 Talk to me about GFP Green Fluorescent Protein. Research on it was awarded 2008 Nobel Prize. Useful for illuminating biological processes. Used as a protein tag. Chem is try Chem is try

Potpourri 500 “Thus conscience doth make _______ of us all.” What are cowards? Chem is try Chem is try

More Atoms 500(b) Chem is tryWhy was JJ Thompson addicted to Laguna Beach?