What is the answer of the drawing

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

Give the orbital configuration of the phosphorus (p) atom.

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.