Everyday Chemical Reactions Quiz

Physical changes of matter refer to changes in the appearance or state of a substance without changing its chemical composition, while chemical changes involve the formation of new substances with different chemical properties.

A chemical reaction is defined as a process in which the nature and identity of the initial substance changes, resulting in the formation of new substances. This occurs when a chemical change takes place.

A chemical reaction can be determined by observing changes in the nature and identity of the initial substance, indicating that a chemical change has occurred. This may involve changes in physical appearance, chemical properties, or both.

<p>Examples of daily life situations where chemical reactions occur include milk left at room temperature during summers, exposure of iron to humid atmosphere, fermentation of grapes, cooking food, digestion of food in our body, and the process of respiration.</p> Signup and view all the answers

<p>The purpose of Activity 1.1 is to help students understand how to identify and observe a chemical reaction. It requires the teacher’s assistance to ensure safety and proper guidance in performing the activity.</p> Signup and view all the answers