8. Given that Ka of HCOOH is 1.77 x 10-4 M, Calculate the pH of a 0.2M HCOOH solution at 25°C.

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?