A student conducts an experiment with a steel wool pad, which is comprised of iron. The student washes the steel wool in vinegar and then leaves the wool out in the open air for 15 minutes. The student notices that the wool is changing color (turning brownish-orange) and when the student touches the steel wool, it feels warm to the touch.
Which of the follow changes occured during this experiment?
A. A physical changed occured and energy was given off
B. A chemical change occured and energy was given off
C. A chemical change occured and energy was absorbed.
D. A physical change occured and energy was absorbed
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A student conducts an experiment with a steel wool pad, which is comprised of iron. The student washes the steel wool in vinegar and then ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
most elements have several stables but some such as lithium, boron, and copper have 2. Consider one such element (it doesn't matter which one). If the abundance of one isotope is 0.1266 what is the abundance of the other isotope?
Answers (1)
How do I balance chemical equations?
Answers (1)
If atoms are made of smaller parts such as electrons, why are atoms considered the basic unit of matter?
Answers (1)
If i have 15.7g of sulfur, how do i work out how much iron is needed to make iron sulfide
Answers (1)
17. kg into g convert following
Answers (1)
New Questions in Chemistry
There is inverse relation between pressure and diffusion in liquid phase? •True •False
Answers (1)
What do you need in order to do a stoichiometric calculation? (Choose multiple) Balanced Chemical Equation Molar masses of compounds involved The type of reaction taking place Oxidation Numbers
Answers (1)
The correct mathematical expression for finding the molar solubility (s) of sn (oh) 2 is:
Answers (1)
18. which bond is most polar? H--F H--Cl H--Br H--I
Answers (1)
What kind of reaction is ca (s) + h3po4 (aq) ca3 (po4) 2 (s) + h2 (g)
Answers (2)