Answer:
If you mix equal amounts of a strong acid and a strong base, the two chemicals essentially cancel each other out and produce a salt and water. Mixing equal amounts of a strong acid with a strong base also produces a neutral pH (pH = 7) solution.
Another gas that was used to fill balloons was hydrogen. The reason why hydrogen is not used today is because it use to cause many fires when it was used to fill balloons up.
Hope I helped you! :)
The naturally acidic rainwater will erode the limestone mountin over time
i am pretty sure it would be a chemical change so A
Well a compound is 2 or more different molecules together. So if you see a periodic table you will see the elements to see if they are the same or not.