When you dilute say 45% alcohol volume with water or coke, does the alcohol percentage change, please explain?

the volume of the liquor stays the same, the volume of the DRINK changes. the alcohol of that drink is equal to the alcohol of one shot of that liquor

The alcohol is still as powerful, but since you added something to it you have to drink more

%45 means by volume. I mean, if you have a 1 liter alcohol mix, its 450 mL is pure alcohol, if its drinkable it is ethyl alcohol. Let's come to your question. If you added 500 mL water to your alcohol mix. you have 450 mL pure alcohol and 1050mL water. Your alcohol percentage change to %30. Hope it helps...

what diluting means is that you are changing the % of the substance to something less.. so if 100% Alchool 1 L is poored into 5 L now its only 20% .. thats how it works even when the dilutant is not the same

If you have a 4oz (shot) glass of a 45% alcohol liquid, and added an additional shot glass full of coke, you would have a ~23% (45/2)alcohol drink. Add another shot glass full of coke, and you'd have a 15% (45/3) alcohol drink.

Yes the % of alcohol change.When you add water or Coke in to it,it diluted,so percentage of alcohol change according to amount of water added.Example -In 50ml of 45% alcohol add 50ml of water, then the % of alcohol=45(50/100)=22.5. But remember that when you drinking alcohol dilute or with out dilute,if you drink all,the amount of alcohol intake will not change.Consider above example,with out dilution you drink 50ml 45% alcohol and with diluting you will take 100ml 22.5% alcohol.So net alcohol intake is same.

Yes. Although the alcohol remains, the percentage of the alcohol when non-alcoholic coke or water or whatever would lower. Say you had maybe a 2 oz shot of 50% alcohol rum (50% of 2 oz. is 1 oz.), and then add an equal amount of water, juice, or whatever to create a 4oz. drink. You still have 1 oz. of rum, so after the drink you'd still be just as affected, but the alcohol content of the total is only 25% (1 oz./4 oz.). Yeah, drinking diluted drink's will make you have to go to the bathroom more often, but you can still get just as drunk off of them.