Answer:
Noble Gases
Explanation:
The Noble Gases have a full valence shell of 8 electrons. They are stable in that sense.
Sunlight is collected from a renewable resource, which is naturally replenished one a human timescale
K + S = K2S
Potassium reacts with sulfur to produce potassium sulfide
Answer:
<em>C.Activation energy is the same in the forward and reverse direction.</em>
<em>Explanation:</em>
<em>All these are true statements expect for option "C"</em>
