The chemical formula for Calcium Arsenate is Ca3As2O8.

Yes. Arsenate (AsO43−) is an ionic compound and therefore polar.

Yes. During glycolysis, arsenate which has a similar structure to phosphate replaces it from glyceraldehyde-3-phosphate to form an unstable arsenate anhydride( 1-arsenato-3-phospho-d-glycerate) that hydrolyzes to form arsenate and 3-phosphoglycerate. In the absence of phosphate, ATP is not formed in the reaction. ADP-arsenate is formed from ADP and arsenate in the presence of succinate. The formation of easily hydrolyzable ADP-arsenate complex uncouples oxidative phosphorylation and causes arsenolysis.

The chemical formula of strontium arsenate is Sr3(AsO4)2.

The name is tripotassium hexachlorocobaltate.