Other Chemistry Answers

 A 3.650-g sample containing bromate and bromide was dissolved in sufficient water to give 

290.0 mL. After acidification, silver nitrate was introduced to a 25.00-mL aliquot to precipitate 

AgBr, which was fil- tered, washed, and then redissolved in an ammoniacal solution of potassium 

tetracyanonickelate(II)

Zinc reacts with element X to form a compound used as rat poison. In a chemical analysis, it is found that 3.90g zinc combines with 1.24g X to form the compound with empirical formula Zn3X2. Determine the relative atomic mass of element X.

[Relative atomic mass: Zn, 65]

For the following redox reaction: MnO₄⁻ (aq) + Ni (s) → MnO₂ (s) + Ni²⁺ (aq). Show how you would balance the reaction if it were in an acidic solution. 

Nickel metal, Ni (s), was left in a solution of aluminum (III) ions (Al³⁺), iron (II) ions (Fe2⁺), and copper (II) ions (Cu²⁺). What reaction is most likely to be spontaneous? Write a balanced redox reaction equation for the reaction.

A galvanic cell must not have :

1. A negative cell potential
2. An electrolyte
3. A cathode and an anode
4. A salt bridge containing ions

For the following galvanic cell: Ag(s) | Ag⁺(aq) || Mg²⁺(aq) | Mg(s), which electrode is the anode? 

1. Mg²⁺(aq)
2. Mg(s)
3. Ag⁺(aq)
4. Ag(s)

Which of the following reacts spontaneously with Fe²⁺ according to the redox table? 

1. Mg²⁺
2. Ag
3. Ni
4. Na

Which of the following is the SOA (strongest oxidizing agent) according to the redox table? 

1. Cu⁺
2. Cu
3. Cu²⁺
4. Cu³⁺