15. In a reaction 14.7 grams of K2Cr2O7 reacted completely with conc. HCI. The equation for the reaction is,
K2Cr207 + 14HCI → 2KCI + 2CrCl2 + 7H20 + 4Cl2

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

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

Answer explain why it is not possible to deduce a complete order of reactivity.