Question

UUTU U DULI 2019, section LIFO al 2019 Complete and balance the following oxidation-reduction reactions, which give the highest possible oxidation state for the oxidized atoms. (Use molecul formulas whenever possible. Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) (a) Al(s) + ZICI,(aq) + chemPad (single displacement) o Help Greek X.X" - - (b) Fe(s) + O2(0)+ chemPad X.X" e (product is a solid) Help Greek (c) 1,(s) + O2(9) - chemPad (the highest oxidation state is +5; the product is a solid) o Help Creek X. Xºle (d) R S) + H ) (products are a strong base and a diatomic gas) MacBook Air

Answer 1

а) Single Replacement reaction: In this type of reaction one element or group in a compound is replaced by another element or group. For example the reaction between zinc and hydrogen chloride; here H is replaced by Zn Zn (s)+ 2 HC1 (aq)->H, (g)+ZnCl, (aq) 4 Al (s) 3 ZrC4(aq) 4 AlCl33 Zr Reaction type: single replacement b) The reaction between hydrogen and oxygen and produce water thus it is an example of synthesis reaction; because water is synthesized in this reaction 2 H2+02 2H20 4 Fe(s) 3 O2 g) 2 Fe2O3 (s) Reaction type: synthesis c) 2 12 5 O2 2 Os Reaction type: synthesis d) 2 Rb(s)2 H20(1) 2 RbOH(aq) + H2(g) Reaction type: single replacement