can someone please help me with this chemistry problem. i'll give you a five star rating, a heart, and the brainliest answer! :D​

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.