Stoich-iometry
Atomic Structure
Periodic Trends
Bonding & Polarity
Thermo-chemistry,
100

What is the mole ratio of reactants in the reaction  2H₂ + O₂ → 2H₂O?

What is 2:1?

100

What particle has a negative charge?

What is an electron?

100

Which element has the highest electronegativity?

What is fluorine?

100

What type of bond involves the sharing of electron pairs between atoms?

What is a covalent bond?

100

What is the term for the heat energy absorbed or released during a chemical reaction?

What is enthalpy?

200

How many grams are in 2 moles of NaCl? (Molar mass of NaCl = 58.44 g/mol)

What is 116.88 (177) g?

200

What is the atomic number of carbon?

What is 6?

200

What trend in atomic radius occurs as you move down a group in the periodic table?

What is it increases?

200

What is the molecular geometry of CH₄?

What is tetrahedral?

200

What is the specific heat capacity of water?

What is 4.18J/g°C?

300

If 4.0 g of Fe reacts with excess O₂, how many grams of Fe₂O₃ are produced? (Molar mass of Fe₂O₃ = 159.69 g/mol)

What is 11.2 g?

300

How many neutrons are in a nitrogen-14 atom?

What is 7?

300

What is the trend in ionization energy as you move from left to right across a period?

What is it increases?

300

What type of intermolecular force is present in water?

What is hydrogen bonding?

300

What is the formula for calculating heat transfer?

What is q = mcΔT?

400

 Calculate the number of moles in 250 mL of a 0.5 M NaOH solution.

What is 0.125 moles?

400

What is the maximum number of electrons that can occupy the third energy level?

What is 18?

400

Which group of elements is known as the noble gases?

What is Group 18?

400

What is the bond angle in a trigonal planar molecule?

What is 120 degrees?

400

What is the term for a reaction that absorbs heat?

What is endothermic?

500

In the reaction 2C₃H₈ + 7O₂ → 6CO₂ + 8H₂O, how many moles of CO₂ are produced from 3 moles of C₃H₈?

What is 9 moles?

500

What is the electron configuration of a chlorine atom?

What is 1s² 2s² 2p⁶ 3s² 3p⁵?

500

What is the most reactive group of metals?

What is the alkali metals?

500

What is the hybridization of the central atom in SF₄?

What is sp3d?

500

(FINAL JEOPARDY)

A reaction has an enthalpy change (∆H) of -150 kJ and a change in entropy (∆S) of +50 J/K. At what temperature (in Kelvin) will the reaction be spontaneous?

What is 3000K

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