READ THIS: When you hear that NASA's space probes are looking for "evidence of life" on other planets, do you know what that means? They are looking for evidence of liquid water. Water is fundamental for all life; without it every living thing would die. Water covers about 70% of Earth's surface and it makes up 65-75% of our bodies (82% of our blood is water). Even if water might seem boring to you-no color, taste, or smell it has amazing properties that make it necessary for supporting life. Question 21 Based on the readings, answer the following questions. Column A 1. 2 3. Hydrogen Electron density model of H₂O The bonding electrons in some molecules are not equally shared between the atoms. These neutral molecules with a difference of charge across the molecule are called polar molecules. Because of the arrangement of the atoms and electrons in a water molecule, there are two differently charged areas of the molecule even though the molecule is neutral overall. The hydrogen molecules are slightly positive, while the oxygen is slightly negative. The positive area charge (hydrogen) of one water molecule is attracted to the negative area (oxygen) of a different water molecule. This weak attraction is often referred to as hydrogen bonding. 4. 5. Oxygen 6. What types of bonds exist between an H and an O on the same water molecule? What type of bonds exists between an H and an O from different water molecules? What type of bond is represented by the solid lines? What type of bond is represented by the dashed lines? Which is the weaker of the two bonds? Which is the stronger of the two bonds? Covalent Bond Hydrogen = electron presence .... Weak attraction Column B a. Covalent bond b. Hydrogen bond
READ THIS: When you hear that NASA's space probes are looking for "evidence of life" on other planets, do you know what that means? They are looking for evidence of liquid water. Water is fundamental for all life; without it every living thing would die. Water covers about 70% of Earth's surface and it makes up 65-75% of our bodies (82% of our blood is water). Even if water might seem boring to you-no color, taste, or smell it has amazing properties that make it necessary for supporting life. Question 21 Based on the readings, answer the following questions. Column A 1. 2 3. Hydrogen Electron density model of H₂O The bonding electrons in some molecules are not equally shared between the atoms. These neutral molecules with a difference of charge across the molecule are called polar molecules. Because of the arrangement of the atoms and electrons in a water molecule, there are two differently charged areas of the molecule even though the molecule is neutral overall. The hydrogen molecules are slightly positive, while the oxygen is slightly negative. The positive area charge (hydrogen) of one water molecule is attracted to the negative area (oxygen) of a different water molecule. This weak attraction is often referred to as hydrogen bonding. 4. 5. Oxygen 6. What types of bonds exist between an H and an O on the same water molecule? What type of bonds exists between an H and an O from different water molecules? What type of bond is represented by the solid lines? What type of bond is represented by the dashed lines? Which is the weaker of the two bonds? Which is the stronger of the two bonds? Covalent Bond Hydrogen = electron presence .... Weak attraction Column B a. Covalent bond b. Hydrogen bond
Chapter12: The Liquids And Solids Around Us: Especially Water
Section: Chapter Questions
Problem 57E
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Please send me the question in 20 minutes it's very urgent plz question 21 Part 1 and 2
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