HBr is the most powerful and dangerous acid .
Explanation:
A strong acid is one that instantly disunites or grants its protons in suspension. HBr is a strong acid. HBr is powerful than HCl or HF because the overlapping of a 1s-orbital and a 4p-orbital is surprisingly small, thus the binding is weak so splitting is very easy..
Answer:
Resultant force = 8.6N
Explanation:
Using Pythogorus' theorem

Resultant force = 8.6N
Answer:
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Answer:
C
technically B too but youre teachers not that smart so there you go
I think this is the answer hope it helps