Answer:
The statement correctly predicting and explaining the chemical reactivity of two metals is given below -Rubidium (Rb) is more reactive than strontium (Sr) because strontium atoms must lose more electrons
Explanation:
Answer:
-2
Explanation:
carbonate oxifation number is -2
The answer is Wetland and Stream
For Iron:

For Oxygen:

These are the two chemical symbols for the two elements found in Iron Oxide.