What is the energy of a photon that emits a light of
frequency 6.42 x 1014 Hz?
A. 4.67 x 10-1...
![subject](/tpl/images/cats/himiya.png)
![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 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:30
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:30
Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
Answers: 3
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.05.2020 02:48
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.05.2020 02:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 02:48
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.05.2020 02:48
![question](/tpl/images/cats/es.png)
Spanish, 05.05.2020 02:48
![question](/tpl/images/cats/geografiya.png)
Geography, 05.05.2020 02:48
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 02:48
![question](/tpl/images/cats/biologiya.png)
Biology, 05.05.2020 02:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 05.05.2020 02:48
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 02:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 05.05.2020 02:48
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 02:48