What has 1 silicon atom surrounded by 4 oxygen atoms?

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —