So when someone says “have a cup of water” would you interpret that as a cup of a liquid or a cup of molecules?

Also why do people call H2O a liquid?? I thought H2O was a type of molecule so how can a molecule be a liquid?

Guys I might be having trouble with language or overthinking things but is water a type of molecule or is water made of molecules? In other words what do you guys think of when you think of water? A type of molecule or the liquid that you drink? I feel so stupid for asking a question like this but if someone could answer me I would be thankful.

Hey there seagull appreciate the response! So what do you mean by a “substance” though. I often see it being defined as a form of matter having constant chemical composition with characteristic properties although I do not understand what this means. If you could clarify the meaning of “substance” in the context of chemistry that would be great. Thanks in advance.

Ok so elements are species of atoms right? So why do we call an aggregation of sodium atoms - sodium?