Answer:
C) 700 is the answer... but I'm not sure
False, if the electrical potential in a region is constant, the electric field must be zero everywhere in that region.
<h3>What is electric field?</h3>
Electric field is the region of space where the influence of electric force is felt.
E = V/d
where;
- V is electric potential of the field
- d is the distance
Thus, if the electrical potential in a region is constant, the electric field must vary with distance.
Learn more about electric field here: brainly.com/question/14372859
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Consult the balanced reaction:
O₂ + 2 H₂ ⇄ 2 H₂O
which says you need twice as many moles of H₂ as O₂. So if 1.57 mol O₂ is available, then the reaction would consume 2 × 1.57 = 3.14 mol H₂.