EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the best definition of a chemical change (or reaction)?
A
A substance changing phases or physical states, such as the evaporation of water.
B
The creation of new atoms.
C
he ability of a substance to combine with or change into one or more other substacnes
D
Change from the liquid phase to the solid phase such as water freezing.
Explanation: 

Detailed explanation-1: -chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Detailed explanation-2: -A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.

Detailed explanation-3: -A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction. Examples are burning of any substance, rusting of iron.

Detailed explanation-4: -In a chemical reaction, the atoms and molecules produced by the reaction are called products.

Detailed explanation-5: -Which of the following is the best description of the results of a chemical reaction? A new substance with different properties is formed.

There is 1 question to complete.