Which element 'D' reacts vigorously with water to form of a metal hydroxide with the formula DOH and hydrogen? This element has a boiling of 883 degrees.
Which element is an un reactive gas that exists as single atoms? It has a boiling point of -246 degrees.
Thanks
Name these elements?
2016-10-14 4:04 pm
回答 (2)
2016-10-14 4:13 pm
D is sodium (Ne).
D reacts vigorously with water to form DOH and hydrogen. This can be deduced that D is a Group alkali metal (Group IA metal).
Among alkali metals, sodium has a boiling point of 883°C.
The unreactive element is neon (Ne).
The element is an unreactive gas that exists as single atoms. This can be deduced that it is a noble gas.
Among noble gases, neon has a boiling point of -246°C.
D reacts vigorously with water to form DOH and hydrogen. This can be deduced that D is a Group alkali metal (Group IA metal).
Among alkali metals, sodium has a boiling point of 883°C.
The unreactive element is neon (Ne).
The element is an unreactive gas that exists as single atoms. This can be deduced that it is a noble gas.
Among noble gases, neon has a boiling point of -246°C.
2016-10-14 4:39 pm
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