Chemistry Compound vs Molecule: A,C,E Correct

[topsyturvy]

Only 3 statements are correct.
A.) Water is a compound and exist as molecules at rtp.
B.) Magnesium chloride is a molecule but not a compound.
C.) At rtp, nitrogen exist as diatomic molecules.
D.) Rubidium Oxide is a compound but not considered a molecule.
E.) Oxygen gas is classified as a compound as it is composed of molecules at rtp.

pick out 3 correct statements. i pick A, C and E.
am i correct?

what's the different between compound and molecule?

thanks lotsa.

 

[Hootenanny]

Only 3 statements are correct.
A.) Water is a compound and exist as molecules at rtp.
B.) Magnesium chloride is a molecule but not a compound.
C.) At rtp, nitrogen exist as diatomic molecules.
D.) Rubidium Oxide is a compound but not considered a molecule.
E.) Oxygen gas is classified as a compound as it is composed of molecules at rtp.

pick out 3 correct statements. i pick A, C and E.
am i correct?

Yes, you are correct.

what's the different between compound and molecule?

What do think the difference is? How do you define a compound? How do you define a molecule?

 

[topsyturvy]

molecule is two or more atom together.
then, compound is consist of atoms of two or more different elements?

 

[Hootenanny]

molecule is two or more atom together.

Yes, two or more atoms chemically bonded together

compound is consist of atoms of two or more different elements?

This is the defintion of a mixture, to make it the defintion of a compound to need to add the words "with a fixed ratio determining the composition"