Which of the following does not indicate change may have taken place? . a - fracture formation. b - gas production . c - precipitate formation . d - energy transfer. what happens to matter during a chemical reaction? . a - matter is neither destroyed or created. b - some matter is destroyed. c - some matter is created. d - some matter is destroyed and some is create

The correct options are as follows:

1. FRACTURE FORMATION does not indicate that a change may have taken place.

In chemistry, there are two basic types of change, these are physical and chemical changes. While physical changes are reversible, chemical changes are not and they are often accompany by production of gas, production of precipitate, transfer of energy, etc. Fracture formation, which refers to separation of joints or faults during geologic formation does not indicate that any change has taken place. What occur in fracture formation is separation.

2. During chemical reaction, A MATTER IS NEITHER CREATED NOR DESTROYED.

The law, which states that 'matter is neither created nor destroyed' is called the law of conservation of mass. The law was discovered by Antoine Lavoisier in 1785. The implication of the law is that, although during chemical reactions, the quantity of matter in substances can be rearranged or changed from one state to another state, but the mass of the mater remain constant at the end of the chemical reaction.

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.