Commentor's Comments

I got every one but the water one, and I still don't see why I got the water one wrong.

-----------------

*Answer 15. *
a) Water is a molecule composed of two hydrogen atoms and one oxygen atom.
b) Every observation or examination by microscope has confirmed this.

Invalid. Invalid but controversial in philosophical circles. If one defines water as a property that contains two atoms of hydrogen and one atom of oxygen only, then the argument above is valid. However, it is possible also that there may exist a substance that looks like water, boils as water, freezes as water, nourishes plants and life as water, and yet has a different chemical composition to what we know as water. There is nothing that could logically prevent this possibility occurring so the argument then becomes invalid.

------------------------------------------

This question is wrong. What you are asking is this:

a) Water is defined as a substance made from 2 H's and one O.

b) Every past examination of water has confirmed it to be made of molecules consisting of 2 H's and one O.

If you are given a known sample of water and asked to test it, will your observations always confirm that you are in the presence of a substance made from 2 H's and one O?
Abusive comment hidden. (Show it anyway.)
Login to comment.

Profile for Commentor

  • Member Since 2012/08/04


Statistics

Comments

  • Threads Started 11
  • Replies Posted 0
  • Likes Received 0
  • Abuse Flags 0
X

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.

I agree
 
Learn More