Answer true (T) or false (F) to the following statements regarding to acids a) Acids have a sweet taste b) Acids are present in humans stomach in the form of gastric acids c) Acids can dissolve some kinds of metals d) Acids can turn blue litmus paper to green Answer true (T) or false (F) to the following statements regarding to bases a) Bases have a sour taste b) The friction increases in contact with basic substances c) Bases can neutralize acids d) Red litmus paper in contact with bases turns yellow