Discuss each conclusion from a study of redox reactions:(a) The nitride ion functions only as a reducing agent.(b) The nitrate ion functions only as an oxidizing agent.(c) The nitrite ion functions as an oxidizing or a reducing agent

(a) (i) (ii) (iii) With the aid of a simple schematic, explain what covalent bonding is and how it is formed. What are the differences between a covalent bond and an ionic bond? Which type of bond is found in crystalline silicon? At room temperature do you expect an ionic crystal to be a good electrical conductor or a good electrical insulator? Explain why.

Each of the chemically active Period 2 elements forms sta-ble compounds that have bonds to fluorine.(a) What are the names and formulas of these compounds?(b) Does ΔEN increase or decrease left to right across the period?(c) Does percent ionic character increase or decrease left to right?(d) Draw Lewis structures for these compounds.

state whether each of the statement is true or false. Justify your answer in each case(a) sulphuric acid is a monoprotic acid.(b) HCL is a weak acid.(c) methanol is a base.

Would you expect an aqueous solution of manganese (VII) oxide to have a ph greater or less than 7.0? Justify your answer

An electrode has a negative electrode potential. Which statement is correct regarding the potential energy of an electron at this electrode?(a) An electron at this electrode has a lower potential energy than it has at a standard hydrogen electrode.(b) An electron at this electrode has a higher potential energy than it has at a standard hydrogen electrode.(c) An electron at this electrode has the same potential energy as it has at astandard hydrogen electrode.