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False. Seawater contains sodium chloride, but it also has potassium, iodine, magnesium, bromine, calcium, and trace quantities of who knows what.
True
They are both in the same category.
They are both metals.
Yes, because calcium sulfate is insoluble in water.
there is no true holy bible that resembles the Koran they were written in far different time periods.
Zero: Iodine and sodium are both chemical elements, and neither contains any of the other, as is true for all pairs of different elements,
true.
No course not! Every girl responds to their Periods in different ways. Sometimes, she will get that feeling that she wants to be left alone, but that's just the Hormones playing havoc with her:)
No
No
true
The formula unit of sodium chloride is NaCl but it is not a true monomer.
Yes, it is true; but sodium chloride crystals are transparent.
true
It's either phosphorus or calcium
No, it is not true.