Use the periodic to fill in the numbers in the electron configurations shown below. B: 1s2 2sA2pB

A =
2
B =
1
Na: 1s22sC2pD3sE

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

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.