The original results have not been replicated consistently and reliably.
Answer:
Hello There!!
Explanation:
When a metal reacts with oxygen gas metal oxide forms.Whenever a compound or element reacts with oxygen It turns to oxide.
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D as the two substances could have close boiling points, so if the temperature is not controlled well, both substances will evaporate.
Water would not expand when it freezes.<span> </span>
Answer:
an uncharged molecule (typically highly reactive and short-lived) having an unpaired valency electron.
