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Chemistry, 04.04.2021 05:10 choiboiqg6811
What does a catalyst do when added to a chemical reaction? Select all that apply.
Question 3 options:
It lowers the activation energy.
It increases the activation energy.
It speeds up chemical reactions.
It gets consumed in the reaction.
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Answers: 2
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Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
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What does a catalyst do when added to a chemical reaction? Select all that apply.
Question 3 option...
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