What is the name of this structure here please and thanks ​

Summarize possible ways in which phases of matter could combine to form a solution.

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph

Select the correct lewis structure for fluorine which is group 7a element?