Answer:
B. Reduction occurs at the cathode.
Step-by-step explanation:
That's the <em>definition</em>: The cathode is the electrode at which reduction occurs.
A is <em>wrong</em>. The cathode gains electrons through the external circuit.
C is <em>wrong</em>. The cathode has the electrons, so cations move toward it.
D is <em>wrong</em>. Reduction occurs at the cathode, so the oxidation number decreases.
Answer: The pH of the substance is 8.25. The solution is basic.
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydronium ion concentration. The acids have pH ranging from 1 to 6.9 , salts have pH of 7 and bases have pH ranging from 7.1 to 14.
Putting in the values:
Thus as pH is more than 7, the solution is basic.
The pH of the substance is 8.25. The solution is basic.
Yes, it acts according to non-polar properties, although it is soluble in certain polar substances.
This is actually very easy. Without drawing a single one of them I can tell that Boron Trichloride will be trigonal planar. Carbon monoxide is linear (It has two atoms), Silicon tetraiodide is either tetrahedral or more complex (depends on the actual amount of electron domains), and carbon tetrafluoride is tetrahedral.