![subject](/tpl/images/cats/himiya.png)
Chemistry, 29.10.2021 07:10 shaheedbrown06
2. The first inert gas to be isolated was argon, in 1894. Argon was found to have an
atomic weight of slightly less than 40. Which of the following proposed changes to
Mendeleev's original periodic table were supported by the properties of argon?
I. Calcium should no longer be considered one of the alkaline earth metals.
II. Another group of elements should be added to the periodic table.
III. Argons atomic weight is greater than Potassium, thus the periodicity of the elements
should depend on atomic number rather than atomic weight.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:30
For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3รขโฌโc4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:30
Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
Answers: 2
![question](/tpl/images/cats/himiya.png)
You know the right answer?
2. The first inert gas to be isolated was argon, in 1894. Argon was found to have an
atomic weight...
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:10
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 20.04.2021 18:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/nemec.png)
German, 20.04.2021 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:10
![question](/tpl/images/cats/istoriya.png)
History, 20.04.2021 18:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:10
![question](/tpl/images/cats/biologiya.png)
Biology, 20.04.2021 18:10
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:10