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Samples of aluminium selenide must be protected from moisture, because the compound hydrolyzes readily, giving off highly toxic hydrogen selenide gas:Al2Se3 + 3 H2O ---> Al2O3 + 3 H2Se

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How do toxic is selenium?

Elemental selenium is nontoxic, hydrogen selenide and other selenium compounds are extremely toxic and resemble arsenic in their physiological reactions.


What does selenium and oxygen combined together make?

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Locoweed is a plant that can accumulate high levels of selenium from the soil. When livestock like cattle graze on locoweed, they can ingest toxic amounts of selenium, which can lead to selenium poisoning and various health issues.


A 7.300 gram sample of aluminum was quantitatively combined with a sample of selenium to form a compound The compound weighed 39.35 grams What is the empirical formula for this compound?

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Selenium combined with calcium is a mineral supplement that provides both selenium and calcium in a single dosage. Selenium is an essential mineral with antioxidant properties, while calcium is vital for bone health and muscle function. This combination may help support overall health, especially for individuals who have deficiencies in either mineral.


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