You should always study. you can be above your class. thats what i do.. search google for ur course. they can tell u some key points for it. u should even study what you know and want to know as well.
Its strontium and oxygen.
Answer:
Do you have a picture?
Explanation:
Sometimes, pictures are required to answer questions.
Answer: five carbon atoms forms a ring. In adjacent two carbon atoms
An hydroxyl group (-OH) is attached. Molecular formula is
C5H8(OH)2
Explanation: