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.
Answer:
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1.17×6×1023
Wich equals 7.02×1023
Your final answer is 7.02×1023
Answer:
(iodine?) heptabromide
Explanation:
Not sure what element Ig is but use that name and then heptabromide.
Answer:
A. What is the concentration of nitric acid?
Explanation:
its right