Balance the following by redox. box the reducing agent and encircle the oxidizing agent. show your answer with explanation. you very much.

acidic:

1.) cr2o7-2 + i2 > cr+3 + io3-1

2.) as2o3 + no3-1 > h3aso4 + n2o3

Answer :

(1) act as a reducing agent and act as a oxidizing agent.

(2) act as a reducing agent and act as a oxidizing agent.

Explanation :

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

(1) 

In this reaction, 'I' is oxidized from oxidation (0) to (+5) and 'Cr' is reduced from oxidation state (+6) to (+3). Hence, act as a reducing agent and act as a oxidizing agent.

(2) 

In this reaction, 'As' is oxidized from oxidation (+3) to (+5) and 'N' is reduced from oxidation state (+5) to (+3). Hence, act as a reducing agent and act as a oxidizing agent.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

gold is my favorite solid.