A cation is a positively charged ion.
An anion is a negatively charged ion.
If it's neutral, it's just an ion.
Answer:
Na2SO4 means: two moles sodium (45.98 g), one mole sulfur (32.06 g), and four moles oxygen (64.00 g) combine to form one mole of sodium sulfate (142.04 g).
Explanation:
the answer is A.) the moon is orbiting the earth once per month
its the only logical answer, the others are either impossible or illogical