Homework Help: chemistry

Posted by astrid on Monday, October 26, 2009 at 8:05pm.

we did a bunsen burner lab where we burned paper clips. We burned it for about 10 seconds then cooled it in water. I know this is a physical change but i need to come up with 3 chemical changes that occured. I already came up with the water vapor that occurs when it cools down and i need two more examples.

Thank you!

chemistry - DrBob222, Monday, October 26, 2009 at 8:14pm
Water vapor cooling is a physical change, not a chemical change.
Does combusting gas to CO2 and H2O count as a chemical change although it isn't part of the paper clip.
Did the paper clip change color upon heating? Isn't that a chemical change? What do you think the products were?

Answer this Question

Related Questions

Chemistry: Bunsen Burner Lab - Hi! I have recently completed a bunsen burner lab...
chem - what is the difference between a bunsen burner and a lab burner?
chemistry - When gas is burned: CH4 + 2O2 = CO2 + 2H2O, how many moles of water ...
math - A box contains 300 colored paper clips. Tony pulled 25 paper clips out at...
chemistry lab - If the bunsen burner does not light after the gas outlet is ...
ap chemistry - 3.5 g of a hydrocarbon fuel is burned in a ves- sel that contains...
College Chemistry - Consider the following reaction that occurs when natural gas...
Ap Chemistry - Hydrogen gives off 120. J/g of energy when burned in oxgyen, and ...
Chemistry - what is the difference between a basic bunsen burner and the tirrll ...
Honors Chemistry - We did a lab in class on Friday where we stuck a metal loop ...

For Further Reading

First Name:
School Subject:
Answer: