Flourine
Chlorine
Bromine
Iodine
Astatine
Answer:
874.59
Explanation:
The number after 9 is 1
1 is lower than 5 so we leave the previous number the same
It has a positive charge, 22-18= +4
Answer:
identify and name the landforms in the following diagrams
Answer:
60.7 mole
Explanation:
for every 4 moles of iron 3 moles of oxygen is used.
So, moles of oxygen =
= 60.675