Think, does a chemical reaction take place? Do the rocks and/or the water undergo any chemical changes?
Powder. It will dissolve faster and should provide rapid pain relief.
Answer: OC
Explanation:
The Others Could Take Many Millions Of Years
It's 18 (the same as the number of protons:)
Answer: The correct option is 2.
Explanation: Polyatomic ions are defined as the ions in which two or more elements are covalently bonded to act as a single unit. They always carry some charge.
Examples of polyatomic ions are:
known as hydroxide ion,
known as sulfate ion
We are given a compound
having 2 ions which are
and
. these ions are named as sodium ions and hydrogen carbonate ions.
Therefore, the correct option is 2.