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What is the valency of selenium in hydrogen selenide?Consider what selenium's group is in the periodic table. There is oxygen
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2. asked by sarah
3. 623 views
The active volcano Mauna Loa, in Hawaii, and the now-extinct volcano Ei Yunque. Puerto Rico, have certain basaltic lava rocks
1. 1 answer
2. 69 views
Look at Selenium (Se) and Oxygen (O) on the Periodic Table which one is larger? (1 point) Responses Oxygen (O) Oxygen (O)
1. 1 answer
2. 29 views
Look at Selenium (Se) and Oxygen (O) on the Periodic Table which one is larger? (1 point) Responses Selenium (Se) Selenium (Se)
1. 1 answer
2. 66 views
1) What is the charge on the ion that Selenium forms in an ionic compound?I am not sure about this. 2) What noble gas is
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2. asked by Hannah
3. 6,055 views
1.75 x 10^25 selenium atoms contains how many moles of selenium?
1. 3 answers
2. asked by Lu
3. 1,097 views
Based on location in the periodic table, which element has chemical properties that are most similar to iodine (I)?(1
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2. asked by school
3. 91 views
Which lists the elements in order from most conductive to least conductive?potassium (K), selenium (Se), germanium (Ge)
1. 1 answer
2. 19 views
If 25g of lithium reacts with selenium to from 75g of lithium selenide, how many grams of selenium will react?
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2. asked by Holas
3. 52 views
Which element gains three electrons to fill its outermost energy level?(1 point) Responses boron (B) boron (B) selenium (Se)
1. 1 answer
2. 206 views