Please help ! I have a chemistry question

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

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction

What are the coefficients to balance the following equation? ba+br2=babr2