1. L
Number one because the lines match up
I’m distilled water all of the dissolved substances mixed in water have been removed by evaporation.
Mole - one of the most important concepts in chemistry - is a kind of link to go from the microworld of atoms and molecules in a normal macrocosm grams and kilograms.
In chemistry often have to consider large numbers of atoms and molecules. For fast and efficient calculation made using the weighing method. But it is necessary to know the weight of individual atoms and molecules. In order to identify the molecular weight must be added the weight of all atoms in the compound.
Charge = Number of Protons - Number of Electrons = 4
So, Your Answer would be: 4
Hope this helps!
