Explanation:
An acid is a substance that ionizes to produce excess hydrogen ion in solutions.
- A concentrated acid contains a high amount of hydrogen ions in solution compared to other ions.
- Such solutions usually ionizes completely.
- A dilute solution contains a high proportion of water and with low amount of hydrogen ions.
- They do not ionize easily and as fast as strong acids.
Answer:
Isolated system
Explanation:
If we are talking about theremodynamic system answer is ISOLATED SYSTEM
If we talking about mechanic annswer is CLOSED SYSTEM
CLOSED SYSTEM IN CLASSICAL MECHANICS = ISOLATED SYSTEM IN THERMODYNAMICS.
B.) Candy Bar because contains multiple ingredients.
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