Question | Answer |
Why does a higher concentration make a reaction go faster? | There are more collisions per second. |
Why does a catalyst cause a chemical reaction to proceed faster? | The catalyst lowers the activation energy needed to begin a chemical reaction. |
At equilibrium, what is the rate of production of reactants compated to the rate of production of products? | The same |
What is the effect of decreasing the volume of a reaction that contains gases? | The reaction will shift to the side with more moles. |
In an endothermic reaction at equilibrium, what is the effect of raising the temperature? | The reactant makes more products. |
What is the effect of equilibrium when more reactants are added? | The reaction will make more products. |
When a strong acid reacts with a strong base, what compounds are formed? | a salt and water |
Name properties of acids. | taste sour, pH below 7, reacts with metals and carbonates |
Name properties of bases. | taste bitter, pH above 7, does not react with metals and carbonates |
What is an acid according to Arrhenius? | a substance that is a hydrogen ion donator |
What is an an acid according to Bronsted-Lowery? | a substance that donates a protons |
What do you call a substance that changes color in the presence of acids or bases? | indicators |
What is pH? | the negative logarithm of the hydrogen ion concentration |
What type of solution has a pH of 8? | basic |
Name the process of adding a known amount of solution of known concentration to determine the concentration of an unknown solution. | titration |