How many grams of C2H5OH are used up when 6.25 grams of O2 react according to the following equation?
C2H5OH + 302 - 2002 + 3H2O

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.

Is cutting your nails a physical or chemical change

Amodel of an atom is shown below. which element is represented by this model of an atom? boron, carbon, neon, or sodium?