Question

Evaluate each scenario to determine whether it represents a chemical reaction.

Answer 1

Explanation:

A chemical reaction is one in which a chemical change occurs.

During a chemical change;

• The process is irreversible
• New kinds of matter produced
• There is a change in mass

Based on these premise;

 Baking  cake batter is a chemical reaction because you cannot reverse the process

  Shredding a paper is not a chemical reaction because no new kind of matter is produced.

  Twisting of a metal wire is not a chemical reaction

   Yellowing of newspaper in sunlight is a chemical change. The process cannot be reversed

Answer 2

Answer:

1. yes 2. no 3.no 4.yes

Explanation: