Which particle has the same electron configuration as a potassium ion

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

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

How many moles are in 43.9 l of oxygen