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điện phân nóng chảy hoàn toàn 14,9 gam muối clorua của 1 kim loại kềm R thu đc 2,24 lít khí . R là kim loại gì ?
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điện phân nóng chảy hoàn toàn 14,9 gam muối clorua của 1 kim loại kềm R thu đc 2,24 lít khí . R là kim loại gì ?

User Ingernet
by
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2 Answers

5 votes

Answer:

d

Step-by-step explanation:

nCl2 = 0,1 -> nRCI = 0,2

M muéi = R + 35,5 = 14,9 / 0,2

-> R = 39: R la K

User Ajknzhol
by
4.2k points
1 vote

Answer:

d

Step-by-step explanation:

nCl2 = 0,1 -> nRCI = 0,2

M muéi = R + 35,5 = 14,9/0,2

-> R = 39: R la K

User Maarten Winkels
by
4.0k points
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