I think the first question is talking about the ionic compound Sodium sulfide and it’s formula is Na2S.
And for the second question, i’m pretty sure it’d be a positive charge
Answer:
The answer is D, I just took the test
Explanation:
Answer:
D
Explanation:
Option A, B and C are true about energy conversion devices, only option D is NOT true about energy conversion devices.
To Make I the subject you need to get it by itself. To do this divide both sides by V and t:
I = E/Vt
