Answer:
francium, caesium, helium
It isn't a materialistic object.
The main function is to help them see with all their eyes.
Answer:
2Na+F2 yields 2NaF is balanced.
Explanation:
There are 2 sodium and 2 fluorine in both reactants and product: In 2NaF the 2 is distributed because it is in the beginning of the compound.
Answer: The compound is called copper (II) bromide or cupric bromide
Explanation: