"There is" is used almost idiomatically this way. If you are doing an overall recitation of the "stuff" that's in the room, you can easily make it singular. If someone is asking for a detailed account of what's in the room, with each item considered alone, then you can use are.
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Grammar Geek <>"There is" is used almost idiomatically this way. If you are doing an overall recitation of the "stuff" that's in the room, you can easily make it singular. If someone is asking for a detailed account of what's in the room, with each item considered alone, then you can use are. I think that very few people would think that "there is" is wrong unless