The answer is A. As the first statement is a true statement. Hope this help you
A teaspoon of caffeine is <em>NOT</em> deadly as teaspoon of ricin
What invention I want to help you but I am confused
Answer:
CO32−
Explanation:
We have to consider the valencies of the polyatomic ions involved. Recall that it is only a polyatomic ion with a valency of -2 that can form a compound which requires two sodium ions.
When we look closely at the options, we will realize that among all the options, only CO32− has a valency of -2, hence it must be the required answer. In order to be double sure, we put down the ionic reaction equation as follows;
2Na^+(aq) + CO3^2-(aq) ---------> Na2CO3(aq)
Answer:
Just add what they equal to hope this helps :)
Explanation:
