In your choices, the best answer is the mass of the reactants and the mass of the products are no equal. The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction. The best describe should be the concentration of reactants and products are constant.
Answer:
Neils Bohr determined that electrons inhabit distinct energy levels.
Explanation:
Both figures are mixtures,
Figure II is a heterogenous mixture
Figure I is a homogenous mixture
Answer:
Nitrogen atom is small in size than phosphorus thus the bond between its nucleus and valence electrons are stronger than phosphorus.
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