Answer:
4 I believe is false and 5 is D I think
Endothermic you can see this by putting a thermometer in a glass or warm water, adding an ice cube and watching the temperature go down as the ice melts
Answer:
A B C D (all of the above)
Explanation:
Weak acid do not have a much hydrogen ions when in liquids or aqueous solutions. Examples of weak acids include vinegar, citric acid (from oranges, lemons, etc)