To fly close to the Storm Trooper Base, you must enter the code. Solve the code by selecting only the endothermic reaction below. Type your answer as the
letters in order with no spaces, for example bde *
a. 4NH, + 50,- 4NO + 6H,0 + Heat d. Mixing two chemicals and they explode
b.
Activation
energy
Activation
energy
e.
Reactants
Potential Energy
Potential Energy
Products
energy
absorbed
energy
released
Products
Reactants
Reaction Progress
Reaction Progress
f. N2 + 3H2 → 2NH, + Heat
C. N2 +02 CO + H2 + gets cold
g. 6CO2 + 6H2O + sunlight -
CH2O6 + 602

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-