1: The water molecule Quizellenjmchenry2021-10-01T23:29:55-04:00 Please sign up for the course before taking this quiz. NaOH (sodium hydroxide) will dissolve in water because it is…1 negative polar alkaline postive Which one of these does a water molecule NOT do?1 share electrons with other molecules split apart dissolve a lot of substances vibrate Water molecules can break apart into and H+ and an OH-. What is the OH- part called?1 hydrogen ion hydroxide ion hydronium ion What percentage of an adult human body is water molecules?1 50 percent 60 to 70 percent 30 to 40 percent 80 percent Why does the “ear” side of the water molecule have a positive electrical charge?1 Because the hydrogen atoms don't get the shared electrons very often. 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. What causes salt to dissolve in water?1 The temperature of the water. The fact that salt is an unstable crystal. The presence of ions in the water. The pull of the water molecules' postive and negative charges. When a molecule has one side that is more negative and one side that is more positive, we say that the atom is…1 polar radioactive an ion covalent 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 8 6 2 16 Regular water never has any ions (H+ or OH-) in it.1 True False What is another name for a hydrogen ion?1 Proton Hydroxyl Electron Molecule The Periodic Table is a complete list of all known…1 molecules elements periods chemicals The words “hydrogen ion” and “proton” can be used interchangeably.1 True False How many protons does a hydrogen atom have?1 0 2 8 1 Water is a polar molecule.1True / False True False 2: Carbon atoms and fatty acids Back to: 1: The water molecule
