Need 1
A solution of a Solid A is mixed with a few drops of barium nitrate solution
and a white precipitate forms. A dilute hydrochloric acid is then added
(with a little heat) and the white precipitate does not dissolve. Which of the
following anions was in the original solid (Solid A)? *

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

What substance has a mass of 9.5g and volume of 2.1cm^3

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.