What subscripts would properly complete the formula unit Al_N_?
2 answers:
Answer: The value of subscript to complete the given formula will 1 and 1 for both the elements
Explanation:
In the given formula Al is the symbol of aluminium metal and N is symbol of nitrogen atom.
Aluminium has tendency to looses three electrons from its valence shell to attain noble gas configuration where as nitrogen atom has tendency to gain three electrons to attain noble gas configuration. By loosing three electrons aluminium atom will get converted into aluminium cation with 3+ charge ()and by gaining three electrons nitrogen atom will get converted into nitride ion (
). So, if the transfer of three electrons from aluminum atom to nitrogen atom occurs, the compound we will obtain will be AlN that is aluminum nitride.
Hence, the value of subscript to complete the given formula will :x=1, y=1
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Answer: Out of the given options bonds connecting atoms in reactants break, and bonds connecting atoms in products form are the changes which takes place when a chemical change occurs.
Explanation:
A change that leads to the change in chemical composition of a substance is called a chemical change.
For example,
Here, bond between the reactant atoms nitrogen and hydrogen is broken down.
On the other hand, bond connecting the products that is and
is formed.
Thus,, we can conclude that out of the given options bonds connecting atoms in reactants break, and bonds connecting atoms in products form are the changes which takes place when a chemical change occurs.