Absolute value describes the distance of a number on the number line from 0 without considering which direction from zero the number lies. The absolute value of a number is never negative. The absolute value of 5 is 5.
<u>Explanation:</u>
The heat energy released when new bonds are made between the ions and water molecules is known as the hydration enthalpy of the ion. The hydration enthalpy is the enthalpy change when 1 mole of gaseous ions dissolve in sufficient water to give an infinitely dilute solution. Hydration enthalpies are always negative.
Heat of hydration or enthalpy of hydration of ions corresponds to the heat that is released by hydration of one mole of ions at a constant pressure. The more the ion is hydrated, the more heat is released. Degree of hydration depends on the size and charge of ion.
Bestie since it’s Cl2, put 2 next to KCl. That means you need to 2 moles of K, so put 2 next to KI. That’s it
A salt bridge is a laboratory device used to connect oxidation and reduction have cells of a galvanic cell AKA voltaic cell a type of electrochemical cell. it maintains electrical neutrality within an internal circuit preventing the cell from rapidly running its reaction to equilibrium.
<span>Number of moles ( of N20) = mass / molar mass = 88.0g / 44.01g/mole = 2 moles
So, there's 2 moles of N20, and in every molecule there's 2 nitrogen atoms -> there's 4 moles of nitrogen in 88.0g of N20</span>
