Which solid-state component allows a mobile phone to store data, even if the battery is removed for a short time?

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

What is the polyatamic ion of thiosulfate