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: 11982 | Last updated: Mar 22, 2022
Which one of the following represents a physical change?
Hello and welcome to this 'intensive vs. extensive properties' quiz that we have designed below. An extensive property is a property that depends on the amount of matter in a sample, whereas intrusive properties are...
Questions: 10 | Attempts: 11972 | Last updated: Apr 29, 2022
Properties that do depend on the amount of matter present.
Questions: 17 | Attempts: 5955 | Last updated: Mar 22, 2022
Pb(NO3)2+ 2 KI ---> PbI2+ 2 KNO3
What constitutes this reaction?