(Solved): need help 7. A cup of coffee has sugar accumulated at the bottom of the cup. Will adding more sugar ...

7. A cup of coffee has sugar accumulated at the bottom of the cup. Will adding more sugar make the coffee sweeter? Is it possible to make the coffee taste sweeter without adding more sugar? (2 marks) 8. Based on your knowledge of solubility, make a prediction on how global warming will affect ocean life. (2 marks) 9. When a saturated solution of salt is filtered, the residue is collected and removed. The filtrate is allowed to sit and evaporate, and a white residue forms at the bottom of the flask. (1 mark) original mixture (saturated salt solution) Itered residue NaCl(s) funn filter time passes and water evaporates White residue filtrate Explain the chemical principles behind this observation.