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Which of these elements has two valence electrons? a. hydrogen b. barium c. nitrogen d. krypton e. bromine
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What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
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Which polymers are most closely related? a. protein and nucleic acids b. cellulose and starch c. nucleic acids and starch d. nucleic acids and cellulose
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The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?
Answers: 2
Which of these elements has two valence electrons? a. hydrogen b. barium c. nitrogen d. krypton e....
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