Which of these 2 elements will react similarly? *
Be, CI
Na, K
O Na, Mg
Na, CI

Na, K

Explanation:

From the given choices, the two elements that will react similarly are Na and K.

This is because, Na and K are in the same group on the periodic table.

Na and K are both called Alkali metals and they have just one electron in their outermost shell.

The number of electrons in the outermost of an atom determines their chemical properties.

Since Na and K are in the same group, they chemically combine with other atoms in similar fashion.

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation: