A white precipitate forms if sulfate ions are present. Explain why, in a test for sulfate ions, the sample is acidified with hydrochloric acid first. Carbonate ions also produce a white ...

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The opposite charges on the silver and bromide ions cause them to be held together by an electrostatic force. When light strikes the silver bromide, it causes the negative charge on the bromide to ...

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Spanish renewable energy company Acciona Energía will test the zinc bromide battery technology developed by Anglo-Australian manufacturer Gelion at its photovoltaic testing plant in Navarra.

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Unlike the other tests described on this page, the test for carbonate ions works whatever acid is added. Explain why, in a test for sulfate ions, the sample is acidified with hydrochloric acid first.