Choose Your Category Oxidation Numbers Redox Reactions Balancing Chemical Reactions Reaction Types Note Type Questions Organic Questions Final Question

Oxidation Numbers The oxidation number of a monatomic ion is equal to _____________________ The Answer is the charge of the ion. Back

Oxidation Numbers What is the oxidation number of Cu. The Answer is 0. Back

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Oxidation Numbers The most electronegative element on the periodic table has an oxidation number of ______________ when in a compound. The Answer is -1. Back

Oxidation Numbers Assign oxidation numbers to all the atoms in the following: HClO The Answer is +1/+1/-2. Back

Oxidation Numbers Assign oxidation numbers to all the atoms in the following: AlNO 3 The Answer is +3/+3/-2. Back

Redox Reactions – 100 Any chemical change in which one species loses electrons and another species gains electrons is known as this. Back The Answer is a reduction – oxidation reaction or a redox reaction.

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Redox Reactions – 200 This is defined as a chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons. Back The Answer is reduction.

Redox Reactions – 300 What element was reduced in the following reaction? 2 HCl + Mg  MgCl 2 + H 2 Back The Answer is H (it went from a +1 to a 0).

Daily Double

Redox Reactions – 400 3BaS + 8HNO 3  3 BaSO 4 + 8NO + 4H 2 O What element was reduced? What element was oxidized? What is the Reducing Agent? What is the Oxidizing Agent? Back Nitrogen Sulfur BaS HNO 3 (peroxide)

Redox Reactions – 500 What is the reducing agent in the following reaction? HNO 3 + HBr  NO + Br 2 + H 2 O Back The Answer is HBr

Balancing Chemical Reactions These are the only thing that can be used to balance chemical equations. Back The Answer is coefficients

Balancing Chemical Reactions Balance the following equation: ___ CaCO 3 (s)  ___ CaO(s) + ___ CO 2 (g) Back The Answer is 1,1,1

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Balancing Chemical Reactions Balance the following equation: __ CaH 2 + __ H 2 O  __ Ca(OH) 2 + __ H 2 Back The Answer is 1,2,1,2

Balancing Chemical Reactions AlCl 3 (aq) + Ba(OH) 2 (aq) --> Al(OH) 3 (s) + BaCl 2 (aq) When this equation is correctly balanced, the coefficient of the AlCl 3 will be — Back The Answer is 2

Balancing Chemical Reactions Balance the following equation: __ C 6 H 14 + __ O 2  __ CO 2 + __ H 2 O Back The Answer is 2, 19, 12, 14

Reaction Types This type of reaction involves a hydrocarbon and oxygen making water and carbon dioxide. Back The Answer is combustion

Reaction Types Which reaction type best describes the reaction above? Back The Answer is single replacement.

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Reaction Types Fe + 3 Cl 2  2 FeCl 3 Which reaction type best describes the reaction above? Back The Answer is synthesis.

Daily Double

Reaction Types This type of reaction is shown in the following graphic: Back The Answer is decomposition

Reaction Types H 2 SO NaOH  Na 2 SO H 2 O Which reaction type best describes the reaction above? Back The Answer is neutralization.

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Note Type Questions This type of reaction involves a hydrocarbon and oxygen making water and carbon dioxide. Back The Answer is combustion

Note Type Questions If an atom is reduced in a redox reaction, what must happen to another atom in the system? Back The Answer is it must be oxidized.

Note Type Questions Chemical equations must be balanced to satisfy ___________________________ (multiple words). Back The Answer is the law of conservation of mass

Note Type Questions An element in the activity series can replace any element Back The Answer is below it on the list.

Note Type Questions An insoluble solid produced by a chemical reaction in solution is called Back The Answer is a precipitate.

Organic Questions A chemical reaction in which two or more molecules combine to produce water or another simple molecule. Back The Answer is condensation reaction.

Organic Questions An organic compound whose molecules are made up of one or two chains of nucleotides and carry genetic information. Back The Answer is nucleic acid.

Organic Questions Any one of 20 different organic molecules that contain a carboxyl and an amino group and that combine to form proteins Back The Answer is amino acid.

Daily Double

Organic Questions What are the four nitrogenous bases used in DNA? Back The Answer is adenine, cytosine, thymine, and guanine (RNA uses uracil instead of thymine).

Organic Questions A chemical reaction between water and another substance to form two or more new substances. Back The Answer is hydrolysis.

The Final Question The final question has to deal with: »Balancing Chemical Reactions and Classifying Reactions from words Make your wager

Balance the following equation and classify the type of reaction. Tetracarbon decahydride and oxygen react together to make carbon dioxide and water.

The Answer 2 C 4 H O 2  8 CO H 2 O combustion