Question

eversible
If two substances are brought in contact, it will result in
a. a physical change only
b. a chemical change only
c. no changes
d. a chemical change if they are heated together, otherwise a physical chang
fthoon in
reversible change?​

Answer 1

If two substances are brought in contact , t will result in a chemical change if they are heated otherwise physical change .

Answer 2

The strength of N2 triple bond makes the molecule very unreactive because it requires a large amount of energy to break the bond. Nitrogen does not react readily as its bonds are strong making it stable.