Oxidation Br- Brz ot réduc onditions used to recBre alkenes Reduction auto Neither HBr Br- H

3. Which atoms in the following reaction undergo changes in oxidation state? oxidized and which one is reduced? CH3CH₂OH + Na NaOC₂H₂ + H₂ Which one is

When a substance undergoes oxidation... a) its oxidation number decreases. Electrons are a product. b) its oxidation number decreases. Electrons are a reactant c) its oxidation number increases. Electrons are a reactant. d) its oxidation number increases. Electrons are a product.

4. a) When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?NO3- + MgHNO2 + Mg2+Water appears in the balanced equation as a fill in the blank 5 (reactant, product, neither) with a coefficient of . (Enter 0 for neither.) Which species is the oxidizing agent?   b) When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?Mn2+ + IO3- MnO2 + I2 Water appears in the balanced equation as a fill in the blank 5 (reactant, product, neither) with a coefficient of . (Enter 0 for neither.) Which species is the oxidizing agent?   c) When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?Fe2+ + Ni2+Fe3+ + NiWater appears in the balanced equation as a fill in the blank 5 (reactant, product, neither) with a coefficient of . (Enter 0 for neither.)Which element is oxidized?

What type of chemical reaction may involve a metal atom transferring one or more electrons to a metal cation, producing a new metal atom and a new metal cation? a) double replacement  b) single replacement  c) synthesis  d) decomposition

What are the oxidation numbers of these anions?

Which of the following is always a reactant in a combustion reaction? C D A nitrogen a soluble compound an insoluble compound oxygen

Describe the characteristics of single replacement reaction, how it is identified, and what determines if this reaction will occur. Give an example in your response.   (pls write neatly and clearly)