Fill the gaps on redox reactions

Exercise and reference answers

Missing parts

1. Answer

   oxygen

   Choices

   1. oxygen
   2. hydrogen
   3. carbon

2. Answer

   electron

   Choices

   1. electron
   2. proton
   3. neutron

3. Answer

   reduced

   Choices

   1. reduced
   2. dissolved
   3. vaporised

4. Answer

   three

   Choices

   1. three
   2. one
   3. two

Complete the statement

Oxidation first meant adding {0}. Redox is about {1} transfer. In disproportionation one element is oxidised and {2} at once. It needs at least {3} oxidation states.

Instructions

Tap a word to drop it into the empty slot.

Explanation