Which statement best describes how buffers perform their function? They contain water, which causes compounds to dissociate.

They contain substances that can react with either added acid or base.

They have hydronium ions, which lower the pH.

They have hydroxide ions, which raise the pH.

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

Which is the most accurate name for the ionic compound cas?

Steel water aluminum think about the three words listed here. which word could be added as the title of this list of words to tell how these words are related? a) conductors b) heat c) insulators d) metals