Can we request through prayer when drinking water to have it suffused with free hydrogen, have the novel beneficial organisms added, and the hydrogen bond angle changed to 114º given the technical hurdles to arrange that for the average person?

You can certainly request this. Whether it can or will be done is uncertain. This is not only because of the necessary belief quotient being extremely high for physical manifestations of this kind, it is a question of who has responsibility for what they do with themselves. In a sense, this is wanting special consideration, special treatment, special handholding and a servant-like function for the divine realm to sweep away any problems and “make things perfect at my convenience so I can be happy, hale and hearty,” when, in fact, these are first and foremost your responsibility to arrange through exercising wisdom in your choices of lifestyle and self-care. We have helped point the way to many ways you can extend your lifespan even, through promoting better health, by seeing to nutritional needs, and many safety considerations to avoid hazards of all kinds. But we simply cannot do what you are asking in the same way we cannot bring you a pot roast dinner with all of the trimmings simply for the asking. Even though for a lofty purpose, and granted this could be cumbersome and technically impossible for people of limited means and geographic locations posing formidable barriers to acquiring the appliances needed to create the water treatments in question, there are other avenues that can be explored to achieve the same outcomes. This indeed can be done through prayer. It is, after all, the end goal of ingesting enhanced water that is desired here, not the experience of ingesting it alone. The desire is for better health, well-being, and longevity. Those outcomes can be requested through prayer and taken care of by divine realm through other avenues, approaches, and manipulations. So you are, in effect, limiting yourself in wanting a divine replication of the human technology that could be brought to bear to enhance the water you ingest when this is rightly the responsibility of humans on the ground to take care of in whatever way they can. This will serve as motivation to find better ways to cooperate, serve oneself and others, to give a motivation for group cooperation in some cases so there can be acquisition of devices to be used locally for perhaps a large group of recipients pooling together resources to bring this about. This can have secondary benefits as well. This always happens when people work together for a common cause and they form a deep bond as a consequence of their interaction and sharing of tasks to achieve the desired outcome. So you will need to take care of this from your end as it is a human-level solution to the need for greater health and well‑being.