![subject](/tpl/images/cats/himiya.png)
When an iron nail is ground into powder, its mass .
a. stays the same
b. decreases
c. increases
d. cannot be determined
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
a. a physical change
b. a chemical change
c. neither a physical change nor a chemical change
d. both a physical change and a chemical change
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:10
The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?
Answers: 2
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:30
Which statement best describes the flow of energy in this scenario
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:50
A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution
Answers: 3
You know the right answer?
When an iron nail is ground into powder, its mass .
a. stays the same
b. decreases
c. inc...
b. decreases
c. inc...
Questions
![question](/tpl/images/cats/en.png)
English, 05.05.2020 00:29
![question](/tpl/images/cats/health.png)
Health, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 05.05.2020 00:29
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29