A hydrated compound contains 25.9% calcium, 20.8% sulphur,41.6% oxygen, and the rest is water of crystallization. Determine the empirical formula​

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1rocmi,

Remember that a proton has a positive charge, a neutron has no charge, and a electron has a negative charge. Which means the answer is the second option "-1." The first option is a proton and the other two options are invalid since how neither protons, neutrons, and electrons have +2 or -2 charge. Protons, and neutrons are both inside the cell and the electrons are on the outside.

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