Shelby filled three empty soda bottles with 5 g of steel wool, a material used for cleaning that also rusts quickly. She added 100 mL of water to each bottle and then resealed the bottle. She placed each bottle in one of three different locations: in a refrigerator at 3 °C, in a room at 25 °C, and in a warm kitchen at 30 °C. She observed the bottles every day for a week and recorded the amount of rust that formed on the steel wool. Which research question does this experiment best investigate? Please help!

The given question is incomplete as, group of choices associated with the question is not given, however, the correct options are as follows:

A. Does a gas form when steel wool rusts?

B. Does the temperature in a room vary widely over time?

C. Does the amount of water affect how quickly steel wool rusts?

D. Does temperature affect the amount of rust that forms on steel wool?

The correct answer would be - option D. does temperature affect the amount of rust that forms on the wool.

Explanation:

The study or the experiment that Shelby is performing on steel wool which is used for cleaning has rusted on it and added to the three empty bottles and filled with the water and placed in three different places that vary in tempertaure.

One bottle is placed in a refrigerator at 3-degree Celsius, second at room temperature which is 25-degree Celsius, and last in a warm kitchen at 30-degree Celsius and recorder the amount of rust on each for several days in to check what effect of temperature has on rust.

yes i have all the correct answers

1. c 6. b. 11. c

2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

5. c 10. d. 15. a

16. d. 21. a

17. d.

18. a. 22-30 you must do on

19. d. your own

20. d.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.