If a substance is water, then its molecular structure is H2O. If a substance has a molecular structure of H2O, then its boiling point at sea level is 100°C.
A.

If a substance has a boiling point of 100°C, then it is water.

B.

H2O has a boiling point of 100°C.

C.

If a substance is water, then its boiling point at sea level is 100°C.

D.

If a substance has a boiling point of 100°C, then it has a molecular structure of H2O.

Question

If a substance is water, then its molecular structure is H2O. If a substance has a molecular structure of H2O, then its boiling point at sea level is 100°C.
 A.	
 
If a substance has a boiling point of 100°C, then it is water.
 
 B.	
 
H2O has a boiling point of 100°C.
 
 C.	
 
If a substance is water, then its boiling point at sea level is 100°C.
 
 D.	
 
If a substance has a boiling point of 100°C, then it has a molecular structure of H2O.

kinggeorge · Answer

C is true, but the others are not always true.

kinggeorge · Answer

It might be tempting to say that B is also true, but it's only true when you are at sea level, so the statement is not true.

anonymous · Answer

yup

anonymous · Answer

Right king George