Answer:
The answer is B. balanced forces
I think that building on a green hill
Immposibile because water cannot pass through granite
Answer:
Air
Explanation:
It takes up space/ the rest do not
Answer:
109° 27'
Explanation:
The ammonium ion is tetrahedral in shape, all the HNH bonds are exactly at the tetrahedral bond angle since there are only bond pairs in the structure and no lone pairs. Recall that lone pairs decrease the bond angke from the ideal value in a tetrahedron due to higher repulsion.
