Which statement is correct about the rate of a chemical reaction? It increases when the concentration of reactants increases. It does not depend on the concentration of reactants. It increases when the temperature decreases. It does not depend on the temperature. Which of the following happens during an endothermic chemical change? Heat is absorbed. Heat is released. Net energy decreases. Net energy remains constant. Which of the following happens when a reaction reaches dynamic equilibrium in a closed system? The concentrations of the reactants and products increase. The concentrations of the reactants and products decrease. The rate of the forward reaction equals the rate of the reverse reaction. The rate of the forward reaction is slower than the rate of the reverse reaction.
Which statement is correct about the rate of a
It increases when the concentration of reactants increases.
It does not depend on the concentration of reactants.
It increases when the temperature decreases.
It does not depend on the temperature.
Which of the following happens during an endothermic chemical change?
Heat is absorbed.
Heat is released.
Net energy decreases.
Net energy remains constant.
Which of the following happens when a reaction reaches dynamic equilibrium in a closed system?
The concentrations of the reactants and products increase.
The concentrations of the reactants and products decrease.
The rate of the forward reaction equals the rate of the reverse reaction.
The rate of the forward reaction is slower than the rate of the reverse reaction.
Which of the following happens to acid when it reacts with another substance?
It receives a hydrogen ion.
It receives a hydroxide ion.
It donates a hydroxide ion.
It donates a hydrogen ion.
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