A I think thats what I would put
Answer:
Two (2) types of ions
Explanation:
Metal ions (cations) and negatively charged ions (anions) of either chloride, carbonate, sulphides or hydroxides are present during the selective precipitation.
Majorly, the process determines the metal ions present by initiating precipitation as certain conditions.
I hope this was helpful.
Answer:
6.022 x 10^23
Explanation:
There are 20 zeros and the 022 are 3 more places.