Chemical Reactions and Equations: Daily Life Situations Quiz

The nature of a chemical change is that the identity of the initial substance has somewhat changed.

A chemical reaction has taken place when a chemical change occurs.

The purpose of Activity 1.1 is to observe the burning of a magnesium ribbon and collect the ash formed.

<p>The occurrence of a chemical reaction can be identified by observing the changes in the substances involved.</p> Signup and view all the answers

<p>The quote emphasizes that facts alone do not constitute science, just as a dictionary alone does not make literature.</p> Signup and view all the answers

<p>When food is cooked, a chemical change takes place in the substances involved.</p> Signup and view all the answers

<p>Magnesium oxide</p> Signup and view all the answers

<p>change in state, change in colour, evolution of a gas, change in temperature</p> Signup and view all the answers

<p>Magnesium + Oxygen → Magnesium oxide</p> Signup and view all the answers

<p>Reactants: Magnesium and Oxygen, Product: Magnesium oxide</p> Signup and view all the answers

<p>By using chemical formulae instead of words</p> Signup and view all the answers

<p>Formation of hydrogen gas</p> Signup and view all the answers

<p>Observation of a specific reaction</p> Signup and view all the answers

<p>The direction of the reaction</p> Signup and view all the answers

<p>Reactants</p> Signup and view all the answers

<p>Change of reactants to products</p> Signup and view all the answers