3D Molecular Designs Water Models.gdoc
Name _________________________________ Date _______ Hr ___
1. Obtain one 3D water molecule model. What is the chemical formula of water? __________________________
2. What does the H represent? _____________________________________________________________
3. What does the O represent? _____________________________________________________________
4. What does the 2 between the hydrogen and oxygen stand for? __________________________________
5. Which color is O on the model? ______________________
6. What color is H on the model? _______________________
7. Are the atoms really colored like this in real life? __________
8. How many bonds does the O make? ____
9. How many bonds does the H make? ____
10. Do you think that it is possible to see a single molecule of water? _______Why(not)? __________________
11. Draw and label a water molecule. (Due to their polar covalent bonds - sharing electrons ________________, oxygen
is more electronegative while hydrogen is more electropositive. Be sure to place the partial charges on your drawing. Use
the symbol delta 𝛿 and read it as “partial”)
12. Predict what will happen when water molecules interact.
13. Obtain a second water molecule and investigate. Was your prediction correct? What happened?
14. What will happen when two water molecules bump into each other?
15. Draw and label what you have discovered by modeling.
16. What are the bonds between water molecules called? _______________________________
17. Bond your water molecules with the classmates around you to discover how many can bond together. How many of
these bonds can each water molecule form?_____
18. What state of matter is it in when it has its maximum number of these bonds? ______________________
These bonds are about 1/20 the strength of a covalent bond.
19. Complete the table.
States of Water
Number of bonds between water molecules
20. Draw one state of matter. (showing the
molecular structures) - draw 4 molecules
Most
Medium
Fewest
21. Which state did you model above? _____________________________