Answer: Option (c) is the correct answer.
Explanation:
Wood is a mixture of different substances. Primarily it consists of cellulose, lignin, water etc.
When we heat wood then all these substance oxidize into the atmosphere even before they could melt.
Whereas iron, sodium chloride and ethanol all are the substances which can melt at any temperature.
Thus, we can conclude that out of the given options, wood, a mixture of different substances is a material that does not melt at any temperature.
Answer:
b. double bonds, triple bonds, carbon atoms,and hydrogen atoms.
Explanation:
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Answer:
They both have 7 electrons in their outer shell
What happens is that the sodium solution when put in water reacts and creates thermal energy .
