A 20.0-ml sample of 0.150 m koh is titrated with 0.125 m hclo4 solution. Calculate the ph after the following volumes of acid have been added.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Which description best characterizes the motion of particles in a solid?

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium