Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. Thanks and I hope it helped.
The answer is c hope this helped
Answer:
A. Hot to Cold
NDC numbers are assigned to all prescription and non prescreption drugs.
Answer:
3 hydrogen ions
Explanation:
phosphate ion is (PO4)^-3. It has charge -3.
Hydrogen ion has charge +1.
So, we need 3 hydrogen ions,
3H^(+1) + PO4(-3) ---> H3PO4
