Chemistry help needed

Do we need to learn about solubilities??
Like which sulphates are soluble and which not

It’s useful to know, but you’re unlikely to a question which requires that knowledge. The curve for SAT Chemistry is tough, though, so if you’re aiming for an 800 learn the basics.

Wouldn’t it be good for you to review the College Board information about “Topics on the Test”? It seems like you might want that to be your first study item.

According to barrons review book solubility questions can appear. However, they did not appear when i took the test.

Thanks a bunch