![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, 21.06.2019 14:10
The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:00
Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:10
When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —
Answers: 2
You know the right answer?
What unit would scientists use to measure atoms?...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:50
![question](/tpl/images/cats/en.png)
English, 17.03.2021 23:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 17.03.2021 23:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2021 23:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.03.2021 23:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 17.03.2021 23:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 17.03.2021 23:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 17.03.2021 23:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:50
![question](/tpl/images/cats/en.png)
English, 17.03.2021 23:50
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2021 23:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:50
![question](/tpl/images/cats/health.png)
Health, 17.03.2021 23:50
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:50