Question

1. Determine what is oxidized and what is reduced in each reaction. Identify the oxidizing agent and the reducing agent, also.
2Sr+ O2 2SrO
2Li+ S Li2S
2Cs+ Br2 2CsBr
3Mg+N2 Mg3N2
5. 4Fe+3O2 2Fe2O3
Cl2+2NaBr 2NaCl +Br2
Si +2F2 SiF4
2Ca+O2 2CaO
Mg+2HCl MgCl2 +H2
2Na + 2H2O 2NaOH + H2

Answer 1

Answer:

The advantage of the universal indicator is that it displays a variety of colors over the whole pH scale. This makes it possible to determine an approximate pH of a solution over a range from 1-14. whereas, A commonly used acid-base indicator is litmus