SCIENCE
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The Law of Conservation of Matter states that during a reaction matter can be created and destroyed
|
|
|
The Law of Conservation of Matter states that during a reaction no matter is created nor destroyed.
|
|
|
The Law of Conservation of Matter states that matter goes through changes called a phase change
|
|
|
None of the above
|
Detailed explanation-1: -Matter can change form through physical and chemical changes, but through any of these changes matter is conserved. The same amount of matter exists before and after the change-none is created or destroyed. This concept is called the Law of Conservation of Mass.
Detailed explanation-2: -The Law of Conservation of Mass dates from Antoine Lavoisier’s 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
Detailed explanation-3: -The law of conservation of energy states that energy can neither be created nor destroyed-only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it’s added from the outside.
Detailed explanation-4: -The law of conservation of mass states that matter can neither be created nor be destroyed in a chemical reaction, i.e. mass before and after the chemical reaction is same.
Detailed explanation-5: -The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.