p49,50,51 questions and indexed

p49,50,51 questions and indexed - What types of things does...

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Joseph Leonard – 11/6/07 - p49,50,51 30 questions and indexed 1. 49 – 1 From where do many of water’s biological functions stem? 2. 49 – 1 What type of bond holds a water molecule together? 3. 49 – 1 In what type of bond do atoms share electrons? 4. 49 – 1 Do these atoms share electrons equally? 5. 49 – 1 How many protons does an oxygen atom have in its nucleus? 6. 49 – 1 What do these eight positive charges do? 7. 49 – 1 What does an oxygen atom pull towards its nucleus? 8. 49 – 1 Which atom, then has a greater negative charge? 9. 49 – 2 How are the atoms in a water molecule arranged? 10. 49 – 2 What is the total electrical charge of water? 11. 50 – 1 Which region of the molecule has a slightly negative charge? 12. 50 – 1 What type of charge do the regions where the hydrogen atoms are have? 13. 50 – 1 What is a polar compound? 14. 50 – 2 What makes water very effective in dissolving other substances? 15. 50 – 2
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Unformatted text preview: What types of things does water dissolve? 16. 50 2 What type of compound is sodium chloride? 17. 50 2 What does an ionic compound mixed with water tend to dissociate into? 18. 50 2 What does this breaking up of ionic compounds do? 19. 50 2 What are dissolved dissociated ions present in? 20. 50 3 What does the polar nature of water also cause? 21. 50 3 What is a hydrogen bond? 22. 50 3 How does water form hydrogen bonds? 23. 50 3 What does a hydrogen bond tend to form between? 24. 51 1 What is cohesion? 25. 51 1 Where can you see cohesion at work? 26. 51 2 What is adhesion? 27. 51 2 What do adhesion and cohesion enable water molecules to do? 28. 51 2 What is capillarity? 29. 51 3 What must water do in order for it to change temperature? 30. 51 3 What does most of the thermal energy that the water initially absorbs do?...
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