there are 1023 atoms in pure aluminium
The compound sodium carbonate is a strong electrolyte because it completely dissociates when placed in water into its component ions. The equation of the reaction can be expressed as:

The dissociation leads to the formation of sodium and carbonate ions with the latter held together by its internal covalent bond.
This is unlike weak electrolytes that do not dissociate completely in water or aqueous solutions. Only a small fraction of the solute exists as ions in the solution.
More on strong and weak electrolytes can be found here: brainly.com/question/3410548
Decrease the temperature of the oxygen because if coal goes air born it can explode and wipe out power plants like they were not there
When salt is added to ice the temperature of the ice will even drop or the ice will melt
Chemical change because you don’t do that action physically