The Mole & Chemical Composition Chemical Equations & Reactions Vocabulary Mania Writing/Naming Chemical Compounds Feeling Lucky?

The Mole/Chemical Composition $100 (Question) How many sodium atoms are present in one mole?

The Mole/Chemical Composition $100 (Answer) 6.02 x atoms Na

The Mole/Chemical Composition $200 (Question) What is the molar mass of magnesium fluoride?

The Mole/Chemical Composition $200 (Answer) MgF 2 = g/mol

The Mole/Chemical Composition $300 (Question) How many grams are in 3.50 moles of NaCl? (The molar mass of NaCl is g/mol)

The Mole/Chemical Composition $300 (Answer) 3.50 mol NaCl x g NaCl = 1 mole NaCl 205 g NaCl

The Mole/Chemical Composition $400 (Question) Determine the percent composition of sodium in sodium nitrate, NaNO 3.

The Mole/Chemical Composition $400 (Answer) Na – g /85.00 g x 100 = 27.05% N – g/85.00 g x 100 = % O 3 – g/85.00 g x 100 = %

The Mole/Chemical Composition $500 (Question) Determine the empirical formula of a compound containing 21.6% sodium, 33.3% chlorine and 45.1% oxygen.

The Mole/Chemical Composition $500 (Answer) 21.6 g Na/22.99 g Na = 0.940/0.940 = g Cl/35.45 g Cl = 0.940/0.940 = g O/16.00 g O = 2.82/0.940 = 3 NaClO 3

Chemical Equation/Reaction $100 (Question) Balance the following equation: Al + CuSO 4  Al 2 (SO 4 ) 3 + Cu

Chemical Equation/Reaction $100 (Answer) 2 Al + 3 CuSO 4  Al 2 (SO 4 ) Cu

Chemical Equation/Reaction $200 (Question) Using the Activity Series of Metals, will this reaction take place? Explain Lead is placed into an iron(III) nitrate solution

Chemical Equation/Reaction $200 (Answer) Lead is located below iron on the activity chart and therefore will not replace iron in this reaction.

Chemical Equation/Reaction $300 (Question) Write a unbalanced formula equation for the following reaction: calcium bromide forms from calcium and bromine when it is heated.

Chemical Equation/Reaction $300 (Answer) Ca + Br 2 CaBr 2

Chemical Equation/Reaction $400 (Question) Name the type of reaction AB + C  CB + A

Chemical Equation/Reaction $400 (Answer) Single displacement

Chemical Equation/Reaction $500 (Question) Predict the following products as chemical formulas : Al 2 (SO 4 ) 3 + K 2 CO 3  *formulas must be written correctly

Chemical Equation/Reaction $500 (Answer) Al 2 (SO 4 ) 3 + K 2 CO 3  Al 2 (CO 3 ) 3 + K 2 SO 4

Vocabulary Mania $100 (Question) The starting substance in a chemical reaction

Vocabulary Mania $100 (Answer) Reactant

Vocabulary Mania $200 (Question) The mass of the reactants is always equal to the mass of the products

Vocabulary Mania $200 (Answer) The law of conservation of mass

Vocabulary Mania $300 (Question) The new substance produced in a chemical reaction

Vocabulary Mania $300 (Answer) Product

Vocabulary Mania $400 (Question) A solid that is formed from a chemical reaction

Vocabulary Mania $400 (Answer) Precipitate

Vocabulary Mania $500 (Question) A formula that tells the ratio of atoms in a molecule

Vocabulary Mania $500 (Answer) Empirical formula

Writing/Naming Chemical Compounds $100 (Question) The chemical formula for: dichlorine monoxide

Writing/Naming Chemical Compounds $100 (Answer) Cl 2 0

Writing/Naming Chemical Compounds $200 (Question) The chemical name for: BrCl 3

Writing/Naming Chemical Compounds $200 (Answer) Bromine trichloride

Writing/Naming Chemical Compounds $300 (Question) The chemical formula for: copper(II) nitrate

Writing/Naming Chemical Compounds $300 (Answer) Cu(NO 3 ) 2

Writing/Naming Chemical Compounds $400 (Question) The chemical name for: H 3 PO 3

Writing/Naming Chemical Compounds $400 (Answer) Phosphorous acid

Writing/Naming Chemical Compounds $500 (Question) What is the difference in naming the following: (Be specific) CO 3 and CO 3 2-

Writing/Naming Chemical Compounds $500 (Answer) CO 3 is a covalent compound named carbon trioxide CO 3 2- is a polyatomic ion named carbonate

Feeling Lucky? $100 (Question) What type of substance is HCl?

Feeling Lucky? $100 (Answer) An Acid

Feeling Lucky? $200 (Question) Which type of reaction is the following equation: 2C 3 H 7 OH + 9O 2  6CO 2 +8H 2 O

Feeling Lucky? $200 (Answer) Combustion Reaction

Feeling Lucky? $300 (Question) What mass of silver is present in a Eagle coin?

Feeling Lucky? $300 (Answer) 1.00 gram

Feeling Lucky? $400 (Question) What is the percent composition of copper in a Eagle coin?

Feeling Lucky? $400 (Answer) (0.67 / 16.72) x 100 = 4% Cu

Feeling Lucky? $500 (Question) Ibuprofen has an empirical formula of C 7 H 9 O and an experimental molar mass of 215 g/mol. What is the molecular formula?

Feeling Lucky? $500 (Answer) C 14 H 18 O 2