1. What do you mean by the following and Give two examples in each case:
a. Cations
b. Anions
c. Polyatomic ions
2. Write the ratio by mass in the following compounds:
a. Magnesium oxide (MgO) b. Sodium chloride (NaCl) c. Water (H2O)
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Explanation:
1.
a.cations are positively charged ions .
b. anion are nagetively charged ions.
c.polyatomic ions are the ions consist more than 1 atom
ex. Nacl
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