If an element has 13 protons, how many electrons are in its outer shell?

True or False a saturated aqueous solution has more solute than the solution can hold or dissolve this some of the solute can be seen lying on the bottom of the container

Given the equation representing a reaction at equilibrium: N2 (g) + 3H2 (g) 2NH3 (g) What occurs when the concentration of H2 (g) is increased? (1) The equilibrium shifts to the left, and the concentration of N2 (g) decreases.

Develop a demonstration to show how weight is not the same thing as mass

Which energy transition may take place in the atom if its electron has absorbed a photon?

A 0.610 m aqueous solution of kbr has a total mass of 75.0 g. what masses of solute and solvent are present?

Halogens have ... Electron affinity

Observe: Change the Surface area from Minimum to Maximum. You can imagine that a solid reactant has been dissolved in a liquid. How does this change how many Reactant B molecules are exposed to Reactant A?

When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL When placed in a 200-mL circular tube, the same amount of that same substance has a spherical shape and a 75-mL volume.

What is the example to the word camouflage

Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196 grams of H2SO4