If you've stumbled across yummy-coffee-688tiw2a-dpuo9h0ekzv2.edgeone.app, you're probably looking at an interactive chemistry experiment about metals reacting with hydrochloric acid. The entire homepage is in Chinese and functions as a drag-and-drop lab simulation. That's useful if you're a student, but let's talk about whether this site is safe to use.
Most legitimate educational sites either belong to known institutions, have a clear domain name, or at minimum make it easy to contact someone. This site lacks all three. The domain is a randomly generated subdomain of edgeone.app, there's no email or phone number, and no social media accounts. The site does have privacy pages and a legal entity disclosure, which is unusual for a simple demo — and a positive signal.
For what the site actually does (let you drag virtual metals into virtual acid), you're probably not at risk of anything serious. But if you're asking "is yummy-coffee-688tiw2a-dpuo9h0ekzv2.edgeone.app a scam," the real answer is that it's more of a mystery than a scam. There's not enough evidence to call it dangerous, but also not enough to call it established. Use it for the experiment, don't register or pay for anything.