Given the reaction equation; ClO3−(aq)+3Cu(s)+6H+(aq)→Cl−(aq)+3Cu2+(aq)+3H2O(l), the cell notation is Cu/Cu2+//ClO3-/Cl/Pt.
<h3>What is an electrochemical cell?</h3>
A electrochemical cell is one in which electrical energy is produced by chemical processess. In this case, the cell reaction equation is; ClO3−(aq)+3Cu(s)+6H+(aq)→Cl−(aq)+3Cu2+(aq)+3H2O(l).The electrode used here is Pt.
Looking at the equation, we can write the notation for the cell reaction as;Cu/Cu2+//ClO3-/Cl/Pt.
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The circuit that are in parallel circuits are option A and option B.
<h3>What are parallel circuits?</h3>
A parallel circuit has branches that divide the current so that just a portion of it passes through each branch.
A parallel circuit has the same voltage (or potential difference) across each branch, but the currents might vary.
Thus, the correct options are A and option B.
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The kinetic energy that the given object will have is: 10 J
<h3>Kinetic Energy Calculation</h3>
We are given;
Mass of object; m = 4 kg
Speed of object; v = 5 m/s
Now, the formula for kinetic energy is;
K.E = ½mv²
Plugging in the relevant values gives;
K.E = ½ × 4 × 5
K.E = 10 J
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