Mark check (✅) if the pair is correct and (x) if it is wrong

____1.H2o: compound
____2.NaCl: mixture
____3.18k necklace: compound
____4.soy sauce: compound
____5.Baking soda: compound
____6.CO2: mixture
____7.steel: mixture
____8.ferrous sulfate:(FeSo4): compound
____9.vinegar: mixture
____10.ink: mixture ​