Need help with C I have an idea but don’t know if it’s correct.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

if you mean hydrogen and oxygen then water is the product