What is the element with 2 protons on the periodic table?
Hydrogen was the first element with 1 proton
So the second one with 2 protons must be

Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy