Need help- anyone!

[MariaMaria]

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Can anyone tell me why the answer is c and not a?

What is the hybridization of a nitrogen atom if
it forms two​

​

σ two π bonds?
A. sp
B. sp2​

C. sp​

​

3​

D. sp3d2


And this one... why not d... the answer is b.

A 12-volt battery with an internal resistance of
1-​

​

Ω resistor. Which of the following is the
current in amperes that flows in the circuit.
A. 4
B. 3
C. 9
D. 12​

E. 48

 

[OnionKnight]

This was posted a long time ago so I'm not sure you still need help on these. I think your answers are actually correct. In the first question, C does not make sense because sp3 hybridization would lead to an atom being able to form four sigma bonds and no pi bonds.

As for the physics one, V = IR which means I = V/R. That has to be 12V / 1 ohm = 12 Amps. I'm not as sure about this one though because there are different ways to calculate for resistors in a series or parallel. Hope this helps