<span>When two metals touch in the mouth, a small shock is created. this is known as a </span>galvanic action
<span>Kc = [NO2]^4 / [N2O]^2[O2]^3</span>
1)water has a great capacity to hold a moderate heat energy
A mineral occurs naturally, meaning that even though there are artificial substances that might be described as mineral-like they are not minerals
Answer:
fe3o4+4h2 - 3fe + 4h2o
therefore coefficient is 4
