SDSU Oceanography 100 sacramentogrilo exam 2 Questions with Verified Answers 100%

SDSU Oceanography 100 sacramentogrilo exam 2 Questions with Verified Answers 100% what makes up the water molecule? - CORRECT ANSWER-1. 2 hydrogen (+) atoms, attracts (-) atoms 2. 1 oxygen (-) atoms, attracts (+) atoms what is the bond angle of the water molecule? - CORRECT ANSWER-105° what's so peculiar about this molecule? - CORRECT ANSWER-it's one of the few molecules on earth present in 3 different ways: liquid, solid, & gas what kind of bonds are in the water molecule? - CORRECT ANSWER-covalent bonds (sharing electrons between O & H atoms) what kind of bonds connect all the water molecules together to form liquid? - CORRECT ANSWER-hydrogen bonds what do these bonds lead to? - CORRECT ANSWER-bind water molecules together; cohesion - surface tension why is water a polar molecule? - CORRECT ANSWER-b/c it has 1 side that is positively charged & 1 side that is negatively charged what do we call water as a result & why? - CORRECT ANSWER-a universal solvent b/c it dissolves substances what happens to salt (NaCl) in water? - CORRECT ANSWER-it dissolves; na (+) atoms are attracted to o (-) atoms & cl (-) are attracted to h (+) atoms what are the 3 phases of water? - CORRECT ANSWER-ice (solid), water (liquid), vapor (gas) how does 1 phase get changed to another? - CORRECT ANSWER-1. water - ice (heat is removed) 2. ice - water (heat is added) 3. water - gas (heat is added) what is heat capacity? - CORRECT ANSWER-amount of heat required to raise the temperature of 1g of a substance by 1°C