What do you know about chemical reactions? A chemical reaction is a route that leads to the transformation of one group of chemical substances to another. Chemical reactions exemplify changes that only involve electrons'...
Questions: 12 | Attempts: 10460 | Last updated: Apr 6, 2021
Which one of the following represents a physical change?
An extensive property is a property that depends on the amount of matter in a sample whereas intrusive properties are mostly determined by the physical property of a system. Test how well you understand the difference and...
Questions: 8 | Attempts: 9260 | Last updated: Mar 19, 2019
Properties that do depend on the amount of matter present.
Questions: 17 | Attempts: 5481 | Last updated: Sep 11, 2020
Pb(NO3)2+ 2 KI ---> PbI2+ 2 KNO3
What constitutes this reaction?