Which of the following is NOT true about one mole of magnesium chloride?
- It has 6.022×10²³ Mg²⁺ ions
- It has 2×(6.022×10²³) Cl⁻ ions
- It has 6.022×10²³ Mg²⁺ and Cl⁻ ions
- It has 6.022×10²³ MgCl₂ formula units
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