Midterm Review

Holy GuacaMOLEy

100

This is the number of objects in one mole.

What is 6.02 * 10²³?

200

This is the mass in grams of one mole of calcium fluoride (CaF₂).

What is 78.1 g?

300

This is the number of moles present in 25.0 grams of K₂SO₄.

What is 0.143 moles?

400

This is the number of atoms in 0.0025 moles of aluminum nitrate, Al(NO₃)₃.

What is 1.5 * 10²¹ atoms?

500

This is the percent by mass of carbon in CaCO₃.

What is 12%?

007

100

This type of bond involves two nonmetals sharing electrons.

What is a covalent bond?

200

This bond occurs between two oppositely charged species.

What is an ionic bond?

300

This is the proper name for Mg(NO₃)₂.

What is magnesium nitrate?

400

This is the chemical formula for F₂Cl₃.

What is difluorine trichloride?

500

This is the proper name for Fe₂(SO₄)₃.

What is Iron (III) Sulfate?

Reactions and Formulas and Balancing, Oh My!

100

This is the coefficient in front of CaCO₃ when the following precipitation reaction is fully balanced:

CaCl_2(aq) + Na₂CO_3(aq) -> NaCl_(aq) + CaCO_3(s)

What is 1?

200

This is the coefficient in front of oxygen when the following equation for the combustion of propane is fully balanced:

C₃H_8(g) + O_2(g) -> CO_2(g) + H₂O_(g)

What is 7?

300

This is a possible product of the following reaction (name one):

Cu_(s) + AgNO_3(aq) -> 

What is Ag_(s) or Cu(NO₃)_2(aq)?

400

This is the molecular formula of cyclohexane, which is a substance with a molar mass of 84.2 g/mol and an empirical formula of CH₂.

What is C₆H₁₂?

500

This is the empirical formula of a substance that is 53.3% carbon, 11.2% hydrogen, and 35.5% oxygen.

What is C₂H₅O?

Don't be Dense; Convert these Units

100

This is the density of a 8.0 g object that occupies a volume of 4.0 mL.

What is 2.0 g/mL?

200

This is the mass of a 15.0 mL sample of zinc (density = 7.14 g/mL).

What is 107 g?

300

This is the number of feet in a 5.0 km race.

5280 ft = 1 mile     1 mile = 1.61 km

What is 16400 ft?

400

This is a bullet's speed in miles per hour. (A bullet travels about 2500 ft/sec).

5280 ft = 1 mile      3600 sec = 1 hr

What is 1700 mph?

500

This is the volume occupied by 0.500 moles of copper (density = 8.96 g/mL).

What is 3.55 mL?

I play Jeopardy Periodically

100

Elements in this group don't usually react.

What is group 18/8A or the noble gases?

200

This is the number of protons in a titanium atom.

What is 22?

300

Elements in this group tend to have a charge of 2+ when they form ions.

What is group 2?

400

This is the number of electrons in a N^3- ion.

What is 10?

500

This is the empirical formula of the ionic compound formed when an element from group 1 (X) bonds with an element from group 16 (Y).

What is X₂Y?