I need an example of a disaccharide.

Would an examle be lactose?

what evidence would you look for in a chemical change

Since this is not my area of expertise, I searched Google under the key words "disaccharide" to get these possible sources:

http://en.wikipedia.org/wiki/Disaccharide
http://academic.brooklyn.cuny.edu/biology/bio4fv/page/disaccharide.html
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Carbohydrates.html

You can do the same for "lactose." In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where is more likely to be overlooked.

Second, since this is not my area of expertise, I searched Google under the key words "'chemical change' evidence" to get these possible sources:

http://www.launc.tased.edu.au/online/sciences/PhysSci/pschem/change/Change5.htm
http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemchng.htm
http://209.85.173.104/search?q=cache:ZFdBqo7a-4AJ:www.saisd.net/ADMIN/curric/science/Sec/8th%2520Grade/Evidence%2520of%2520Chemical%2520Change.doc+%22chemical+change%22+evidence&hl=en&ct=clnk&cd=4&gl=us&client=safari
http://www.bcscience.com/bc9/pgs/idea_u1_chem_change.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.

Yes, lactose is an example of a disaccharide. It is composed of two sugar molecules, glucose and galactose, joined together by a glycosidic bond.

To find examples of disaccharides like lactose, you can use various resources, such as textbooks, scientific literature, or online sources. These sources can provide information on the structure and composition of disaccharides, including examples and their properties. You can also search for specific disaccharides, such as lactose, to get more information about them.