![subject](/tpl/images/cats/himiya.png)
Chemistry, 29.10.2019 03:31 seimdakota
What is the value of the standard enthalpy of formation of an element in its most stable form?
![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 22:30
How much heat is released upon converting one mole of steam (18.0 g) from 100.0 βc to water at 25.0 βc? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that
Answers: 1
![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 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) β 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
You know the right answer?
What is the value of the standard enthalpy of formation of an element in its most stable form?...
Questions
![question](/tpl/images/cats/en.png)
English, 25.03.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 25.03.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.03.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.03.2021 01:00
![question](/tpl/images/cats/en.png)
English, 25.03.2021 01:00
![question](/tpl/images/cats/ekonomika.png)
Business, 25.03.2021 01:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.03.2021 01:00
![question](/tpl/images/cats/en.png)
English, 25.03.2021 01:00