What does Le Châtelier's principle state?
O
A. A reaction at equilibrium will go to completion when the
equilibrium is upset.
O
B. A reaction at equilibrium will respond to balance a change.
O
C. A reaction will form a new equilibrium ratio when the equilibrium is
upset.
O
D. A reaction at equilibrium will not respond to a change.

Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2  + h2cucl2  + na2s → 2nacl + cuscaco3  → cao + co2          2zns + 3o2  → 2zno + 2so2          ch4  + 2o2  → co2  + 2h2o

What is the molecular weight of copper

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.