Evaluate the following questions based on your knowledge of concentration cells. a. trueb. falseConcentration cells require electrical energy to work a. trueb. falseConcentration cells work by trying to reach equilibrium a. trueb. falseReduction takes place at the anode a. trueb. falseThe standard potential will always be zeroa. trueb. false

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.