Nomenclature Jeopardy

Ionic Compounds

100

NaCl is:

Sodium chloride

200

Potassium chlorate is commonly used in industrial purposes due to its oxidizing abilities. Write its chemical formula.

KClO₃

300

Four lithium compounds are shown:

LiHCO_3(s)

Li₃PO_4(s)

LiBrO_3(s)

Li₂CrO_4(s)

Choose the insoluble compound, and name it.

Lithium phosphate

400

A calcium chloride solution is poured into a sodium hydroxide solution. Name the products that will form, and write them in their chemical formula with state symbols.

Aqueous sodium chloride and calcium hydroxide precipitate: NaCl(aq) and Ca(OH)₂(s)

500

An ammonium nitrate solution is poured into a potassium hydroxide solution. Predict the products and write their chemical formulas and state symbols.

Ammonia gas, water, and aqueous potassium nitrate: NH_3(g), H₂O_(l), and KNO_3(aq)

Covalent Compounds

100

SO₃ is:

Sulfur trioxide

200

Write out the chemical formula for hydrogen sulfide gas. Include state symbols.

H₂S_(g)

300

Butane (C₄H₁₀) is a common gas at room temperature. It is used as lighter fluid. What is its chemical name?

Tetracarbon decahydride

400

Two nitrogen dioxide molecules can synthesize with each other when cooled down to around -35^oC. Name this product and write its chemical formula. Include state symbols.

N₂O_4(g), dinitrogen tetroxide

500

Two gases can react in mid-air. For example, ammonium chloride smoke can be obtained by placing two aqueous solutions together. These solutions have gases dissolved in them, which can escape. Which two gases would react to form ammonium chloride smoke? Name these gases and write down their chemical formulas. Include state symbols. (hint: similar acid/base reaction)

Hydrogen chloride gas and ammonia gas: HCl_(g) and NH_3(g)

Polyatomic ions

100

PO₄^3- is:

Phosphate (ion)

200

Your blood pH must be maintained at a value of 7.4. These ions (HCO₃^-) float around in your blood to maintain it. What are these ions called?

Bicarbonate/hydrogen carbonate ions

300

MgO₂ actually does exist, although not commonly found. What does the O₂ stand for in this compound? (the name of the ion)

Peroxide

400

The chlorate ion (ClO₃^-) is commonly used in labs to form various chlorate solutions. However, ClO^-, ClO₂^-, and ClO₄^- ions can exist, although they are not always stable. What are those ions called?

Hypochlorite, chlorite, and perchlorate

500

When an extra oxygen is added to a polyatomic ion ending in -ate, the prefix per- is added in front of it. However, a sulfur can replace an oxygen in the ion. What is Na₃SPO₃? (not learned in class)

When a sulfur replaces an oxygen, the prefix thio- is added in front of the ion. Therefore, compound is sodium thiophosphate.

Acids/Bases

100

KOH_(aq) is:

Potassium hydroxide

200

There is a common naming convention for oxyacids. If the acetate ion is CH₃COO^-, then what is CH₃COOH?

Acetic acid

300

The Arrhenius and the Bronsted-Lowry theories are widely accepted in today's world. Ammonium nitrate is the salt produced during a neutralization reaction. Name the acid and base used, write their chemical formulas, and state symbols.

Nitric acid and aqueous ammonia: HNO_3(aq) and NH_3(aq)

400

Phenolphthalein is a pH indicator that turns pink when the pH is above 8.2. The phenolphthalein appears to be a strong, hot pink color in a potassium nitrate solution. Name the two chemicals involved in the reaction, write their chemical formulas, and include state symbols.

Nitric acid and potassium hydroxide: HNO_3(aq) and KOH_(aq)

500

Sometimes, acids formed on the product side of a chemical reaction would decompose. Name the two acids that would decompose and its following products, write their chemical formulas, and include state symbols. H₂S isn't considered to be one of them, because it exists as a gas at room temperature.

Sulfurous acid to sulfur dioxide gas and water: H₂SO_3(aq) --> SO_2(g) + H₂O_(l)

Carbonic acid to carbon dioxide gas and water:        H₂CO_3(aq) --> CO_2(g) + H₂O_(l)

Random

100

H₂S_(g) is:

Hydrogen sulfide gas

200

Phosphorus can take many bonds with oxygen. For example, a heavy phosphorus compound with the formula of P₄O₁₀ is formed in a lab. Name this compound.

Tetraphosphorus decoxide

300

When ammonia reacts with acids, it still forms ionic compounds, although the reaction with ammonia and sulfuric acid has NO metals involved in it at all. Name the product and write its chemical formula, and include state symbols. 

Ammonium sulfate, (NH₄)₂SO_4(aq)

400

Magnesium fires are very hard to put out. It can even rip out the oxygen from dry ice. Write the chemical reaction that occurs, and name the products. Include state symbols.

2Mg_(s) + CO_2(s) --> 2MgO_(s) + C_(s)

The products are magnesium oxide and solid carbon. The magnesium oxide might appear as smoke.

500

Zinc sulfide (ZnS) can be obtained from burning a mixture of powdered zinc and powdered sulfur. However, the result is very impure. Name at least two of the side products formed, write their chemical formulas, and include state symbols.

Zinc oxide, zinc nitride, sulfur dioxide, and possibly zinc thiosulfate: ZnO_(s), Zn₃N_2(s), SO_2(g) and ZnS₂O_3(s)