It means there are two chlorine molecules and there is only one magnesium molecule (because no subscript really just means there is an invisible 1 that isn't listed).
4. bc it is softer--made of a different material-- has a weaker reaction force
5. the sand would not leave footprints and would rather act as a whole
6. there is no gravity in outer space-- she can just float back to the spaceship no problem!
A large elliptical galaxy. Hope this helped
In order to follow proper golf equipment there should be no more than 4️⃣ players in your party
so, the answer is 4