![subject](/tpl/images/cats/biologiya.png)
Biology, 05.04.2021 23:40 anasstasiyashpa
You are tasked with identifying several rock samples. You are stumped by this sample. Your teacher has given you a hint. She tells you that it contains iron. You can now narrow your choices. But, you want to know if the rock contains hematite or magnetite.
Design a strategy to test what mineral is present.
A) Test to determine the hardness of the two samples; observe the colors.
B) Observe the shape of the crystals; observe the streak color from a streak test.
C) Observe the colors; do a streak test; see which sample is attracted to a magnet.
D) Observe the shape; determine the hardness of the two samples; observe the colors.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:40, ConstanceBhoo301
Describe characteristics of a good respitory surface
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 16:10, Lovebamagirl12
While washing her hair olivia noticed that she was losing a lot of hair she visited a clinic and the physician reassured her that her hair would grow back how do you think olivias hair will grow back
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 17:00, kotetravels10
The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees
Answers: 3
You know the right answer?
You are tasked with identifying several rock samples. You are stumped by this sample. Your teacher h...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 28.01.2020 14:42
![Konu](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 14:42
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/informatica.png)
Computers and Technology, 28.01.2020 14:42
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 14:42
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 14:42
![Konu](/tpl/images/cats/en.png)