Answer:
✓ It will react with hydrochloric acid to make a salt.
- An acid combined with a base makes a salt!
✓ It has a bitter taste.
- Bases are often bitter, whereas acids are often... acidic? Like citrus or coffee.
✓ It has a pH of 9.
- Since it's basic, this is a safe assumption. Remember: Basic = pH over 7.
☓ It has a pH of 5.
- No! It's basic, not acidic!
✓ It will produce OH- ions when mixed into a water solution.
- Bases are defined by producing OH- ions in solution! Acids produce H+ ions instead. This is part of the definition: just memorize it.
