All elements can be classified as metals, metalloids, or nonmetals
Answer : The energy produced from the combustion of 5 mole 
is 
Solution : Given,
Released energy = 803 KJ
The balanced combustion reaction is,
As per the question,
1 mole of releases energy = 803 KJ
5 mole of produced energy = 
Therefore, the energy produced from the combustion of 5 mole is
Ionic bonding is the answer
The extent to which a given measurement agrees with the standard value for that measurement
During the Last Glacial Maximum, much of the world was cold, dry, and inhospitable, with frequent storms and a dust-laden atmosphere. The dustiness of the atmosphere is a prominent feature in ice cores; dust levels were as much as 20 to 25 times greater than now.
