Does anyone know the answer please I'm stuck for like 2 hours now no joke Light bulbs, salt, *1260, water softener

https://www. engineeringtoolbox. com/specific-heat-capacity-d_391.ht ml

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

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

The rules of engagement (roe) working group is often used to (select all that apply.)