Which of the following is a good reducing agent:

a) mn⁺²
b) cu
c) cu⁺²
d) mn⁺⁷

which of the following is a good reducing agent:

a) fe
b) fe⁺²
c) mn⁺²
d) cr⁺³

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Based on its chemical properties, identify the position of each chemical family on the periodic table.