During our phase changes lab, where did we place the thermometer?
In contact with the air only
In contact with the saucepan only
In contact with both the saucepan and the ice/water
In contact with the ice/water only

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

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.