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:
the atoms have more valence electrons
Explanation:
Answer: H+ ia helyuim
explinanation: Hope this helped!!
Elements are like loners, compounds are like couples, and mixtures are like a group of friends that can also have couples (compounds)
