Answer:
Neon (Ne)
Hydrogen (H)
Argon (Ar)
Iron (Fe)
Calcium (Ca)
Deuterium, an isotope of hydrogen that has one proton and one neutron.
Plutonium (Pu)
F-, a fluorine anion.
Explanation:
I got u
This is a double replacement because both Copper and Sodium reacted with each other compounds , hence "double"
Answer:
ooooooooooooooooooh i dont know this one
Explanation:
im not good a math at all
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