![subject](/tpl/images/cats/himiya.png)
Chemistry, 16.10.2020 17:01 sharperenae9533
Polycarbonate plastic has a density of 1.2 g/cm3 . A photo frame is constructed from two 5.2 mm sheets of polycarbonate. Each sheet measures 28 cm by 22 cm. What is the mass of the photo frame?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 07:30
The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00
The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:00
An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample?
Answers: 1
You know the right answer?
Polycarbonate plastic has a density of 1.2 g/cm3 . A photo frame is constructed from two 5.2 mm shee...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 20.03.2020 20:46
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 20:46
![question](/tpl/images/cats/istoriya.png)
History, 20.03.2020 20:46
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 20:47
![question](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 20:47
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 20:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 20.03.2020 20:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 20:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)