Sodium, which has an atomic number of 11, will react with chlorine, which has an atomic number of 17. when these two atoms react, both become stable. to become stable, sodium will while chlorine will

Explanation:

Atomic number of sodium is 11 and its electronic distribution is 2, 8, 1. Whereas atomic number of chlorine is 17 and its electronic distribution is 2, 8, 7.

As we known that in order to attain stability each element must have 8 electrons in its outer orbital. Therefore, in order to attain stability sodium will lose one electron and chlorine will tend to gain one electron.

As a result, an ionic bond will be formed between sodium and chlorine and hence, NaCl is formed.

Thus, we can conclude that sodium, which has an atomic number of 11, will react with chlorine, which has an atomic number of 17. when these two atoms react, both become stable. to become stable, sodium will lose, while chlorine will gain an electron.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.