Are the countertop and backsplash 1 molded piece, or is the backsplash a separate piece that's glued/calked to the countertop?

Hello Remodeler, Thank you for your question. We are very happy to report that the vanity top, sink, and backsplash is actually integrated into the vanity top material. Therefore, what this means is, the vanity top, sink, and the backsplash are one continuous piece of material; there is no need to secure the backsplash to the vanity top. We hope this information was helpful to you. Best Regards