![subject](/tpl/images/cats/himiya.png)
Chemistry, 10.12.2020 16:20 alexsysantiago54
Rust forming on a piece of iron is an example of which of the following:
A: A physical change because the process can be reversed
B: The natural process of decay as metallic ions age
C: A chemical change because oxygen atoms from the atmosphere bonded with the iron atoms
D: A violation of the laws of physics because new mass has been created
![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 12:30
Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 15:30
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Rust forming on a piece of iron is an example of which of the following:
A: A physical change becau...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.10.2019 16:43
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.10.2019 16:43
![question](/tpl/images/cats/istoriya.png)
History, 25.10.2019 16:43
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.10.2019 16:43
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.10.2019 16:43
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
English, 25.10.2019 16:43
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.10.2019 16:43
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.10.2019 16:43