The answer is (4) at the cathode, where reduction occurs. The Na+ gains one electron and become Na(l). So the reaction occurs at cathode and is reduction reaction.
Volume = 3 cm × 3cm × 3cm
= 27 cm ³
Mass = 213 g
Density =
= <span>

</span>
<span> = 7.89 g / cm³
Thus answer is D.</span>
Explanation:
The video camera will record
A ball moving towards the camera, initially faster and then slower.
I'd say he ways about 35 kilograms, but I'm probably wrong, xD