- The chemical reaction is a process in which a chemical change takes place.
- In a chemical reaction, atoms of the reactants are arranged to produce the products.
- A substance that enters into the chemical reaction are called reactant.
- A substance that is produced by a chemical reaction is called product.
- In a chemical reaction the atoms are neither created nor destroyed
- When a chemical reaction takes place, there is always a change in the properties and the energy content of substances involved in the chemical reaction.
- Define Chemical reaction.
- Tell weather the following are true or false.
b-A substance that enters into the chemical reactions are called reactants.
3. To identify that a chemical reaction occurs, some changes are observed. What are these changes?
References :
Yaghi, M. (1999). Chemistry. Lebanese Educational Publishing Company s.a.l.
Costello, K. (2006). ChemistryLand Nucleus.Retrieved July 05, 2011, from http://www.chemistryland.com/CHM151/chm151home.html
1- Chemical reaction is a process in which one or more substances are changed into others
ReplyDelete3. These changes are a change in the properties and the energy content of substances involved in the chemical reaction.
ReplyDelete2- A- True
ReplyDeleteB- True
1- A chemical reaction is a process that leads to the transformation of one set of chemical substances to another
ReplyDelete1- A chemical reaction occur due to Chemical changes. All chemical reactions involve a change in substances and a change in energy. Neither matter or energy is created or destroyed in a chemical reaction they are only changed.
ReplyDelete2.A-False
B-True
3.When a chemical reaction takes place there is always a change in the properties and the energy content of substances involved in the chemical reaction.