Provided the quantum number sets, which are invalid? 3, 0, 1, +1/2 2, 1, 0, -1/2 4,2,-2,-1/2 2,0,1,-1/2 3,2,1,+1/2 2,2,0,-1/2 1,0,0,+1/2 ...

If you open the bottle of perfume then nothing but the smell will come out of it and yes it is a type of gas smell because it’s say it in english so i can understand better and you

Yes, endothermic means it turns cold. and some chemical changes include change of tempature.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.