1: The water molecule Quizellenjmchenry2019-06-24T23:13:20-04:00 Please sign up for the course before taking this quiz. Water is a polar molecule.1True / False True False How many protons does a hydrogen atom have?1 8 2 1 0 Which one of these does a water molecule NOT do?1 split apart vibrate dissolve a lot of substances share electrons with other molecules The Periodic Table is a complete list of all known…1 periods elements molecules chemicals Water molecules can break apart into and H+ and an OH-. What is the OH- part called?1 hydroxide ion hydronium ion hydrogen ion What do you call H3O?1 hydroxide ion ozone hydronium ion hydrogen ion The oxygen atom of the water molecule has a slightly negative charge to it.1 True False An oxygen atom has how many protons?1 2 8 16 6 The words “hydrogen ion” and “proton” can be used interchangeably.1 True False NaOH (sodium hydroxide) will dissolve in water because it is…1 negative polar postive alkaline What causes salt to dissolve in water?1 The fact that salt is an unstable crystal. The temperature of the water. The presence of ions in the water. The pull of the water molecules' postive and negative charges. What is another name for a hydrogen ion?1 Molecule Electron Hydroxyl Proton Regular water never has any ions (H+ or OH-) in it.1 True False When a molecule has one side that is more negative and one side that is more positive, we say that the atom is…1 radioactive covalent an ion polar Why does the “ear” side of the water molecule have a positive electrical charge?1 Because the hydrogens don't have any neutrons. Because the hydrogens are far away from the oxygen's nucleus. Because the electrons spend more time around the hydrogens than anywhere else. Because the hydrogen atoms don't get the shared electrons very often. What percentage of an adult human body is water molecules?1 60 to 70 percent 30 to 40 percent 50 percent 80 percent 2: Carbon atoms and fatty acids Back to: 1: The water molecule
Please sign up for the course before taking this quiz. Water is a polar molecule.1True / False True False How many protons does a hydrogen atom have?1 8 2 1 0 Which one of these does a water molecule NOT do?1 split apart vibrate dissolve a lot of substances share electrons with other molecules The Periodic Table is a complete list of all known…1 periods elements molecules chemicals Water molecules can break apart into and H+ and an OH-. What is the OH- part called?1 hydroxide ion hydronium ion hydrogen ion What do you call H3O?1 hydroxide ion ozone hydronium ion hydrogen ion The oxygen atom of the water molecule has a slightly negative charge to it.1 True False An oxygen atom has how many protons?1 2 8 16 6 The words “hydrogen ion” and “proton” can be used interchangeably.1 True False NaOH (sodium hydroxide) will dissolve in water because it is…1 negative polar postive alkaline What causes salt to dissolve in water?1 The fact that salt is an unstable crystal. The temperature of the water. The presence of ions in the water. The pull of the water molecules' postive and negative charges. What is another name for a hydrogen ion?1 Molecule Electron Hydroxyl Proton Regular water never has any ions (H+ or OH-) in it.1 True False When a molecule has one side that is more negative and one side that is more positive, we say that the atom is…1 radioactive covalent an ion polar Why does the “ear” side of the water molecule have a positive electrical charge?1 Because the hydrogens don't have any neutrons. Because the hydrogens are far away from the oxygen's nucleus. Because the electrons spend more time around the hydrogens than anywhere else. Because the hydrogen atoms don't get the shared electrons very often. What percentage of an adult human body is water molecules?1 60 to 70 percent 30 to 40 percent 50 percent 80 percent
