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Classify which of the following is a substance: tablero salt, seawater or sand? Explain how you know.
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Classify which of the following is a substance: tablero salt, seawater or sand? Explain how you know.

User Snukus
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table salt (without iodine) is a pure substance.

sea water is a compound of Hydrogen and Oxygen (stating the obvious)

sand is a mixture of minerals and rocks
User Bernardo O
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