![History](/tpl/images/cats/istoriya.png)
Question 17(Multiple Choice Worth 2 points)
A scientist measures the rate of a reaction between two liquids. Then, he performs the reaction again, adding solid manganese. The reaction takes place more
quickly the second time. The mass of the manganese decreased by 0.45 grams during the reaction. He claims that the manganese acted as a catalyst because
sped up the reaction. Is the scientist correct? Why or why not?
Yes, because the reaction happened more quickly with the manganese.
Yes, because the manganese was a solid, and all solids are catalysts.
No, because manganese is a metal, and metals cannot be catalysts
No, because some manganese was used during the reaction, and catalysts are not used up.
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: History
![image](/tpl/images/cats/istoriya.png)
History, 21.06.2019 15:30, Prolearner1234
Who documented the funeral oration of pericles in the history of the war between athans and sparta? a. euripides b. herodotus c. thucydides d. sophocles plz
Answers: 1
![image](/tpl/images/cats/istoriya.png)
History, 22.06.2019 02:00, fish64
The military dictatorship inviolently reacted to the opposition of the maya, who demanded greater rights for their native population. the genocide inresulted from a struggle between arab nomadic tribes and non-arab agricultural groups. the tutsi were the victims of genocide inat the hands of the hutu rulers.
Answers: 3
![image](/tpl/images/cats/istoriya.png)
History, 22.06.2019 03:30, hayesvolcano
Why did william blackstone believe that parliament was important?
Answers: 1
Do you know the correct answer?
Question 17(Multiple Choice Worth 2 points)
A scientist measures the rate of a reaction between two...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 02.02.2021 21:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 02.02.2021 21:10
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 02.02.2021 21:10
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 02.02.2021 21:10
![Konu](/tpl/images/cats/mir.png)
World Languages, 02.02.2021 21:10