Answer: Yes, they do.
Explanation: Neutrons and protons are made up of smaller subatomic particles. When neutons and protons get get close to each other they convert particles and bond together. This occurance is called The Strong Force.
In a physical change the form changes or the state of the matter. For instance water can freeze and water can melt, but it is still water.
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Answer:
2AlCl3 + Ca3N2 - 2AlN+ 3CaCl2
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