![subject](/tpl/images/cats/himiya.png)
Chemistry, 07.07.2019 17:00 moneyyfletcher
Hydrogen's atomic mass indicates that is the most abundant isotope
![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 20:30
The first element on the periodic table of elements is carbon. a. true b. false
Answers: 2
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
You know the right answer?
Hydrogen's atomic mass indicates that is the most abundant isotope...
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 12.02.2020 22:24
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 12.02.2020 22:24
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2020 22:24
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 12.02.2020 22:24
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2020 22:24
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2020 22:24
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2020 22:25
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2020 22:25
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 12.02.2020 22:25
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)