The reactant side of a balanced chemical equation is shown below. C₃Hg +50₂ →
How many oxygen atoms should there be on the product side in the equation? (5 points)
A) 2
B) 5
C) 7
D) 10​

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.