Answer:
109.5 Degrees
Explanation:
Because CH4 is sp4 hybridized (Carbon is bonded to the 4 Hydrogens), the geometry of the molecule must be tetrahedral. Tetrahedral moleculues have bond angles of 109.5 Degrees.
The answer would be choice B because the energy decreased by 20 J
Answer: Okay so here's the order lol from top to bottom
2, 1, 3, 4, 5
Explanation: