Ice Melting:
What are the properties of ice (before it melts)?
Is this a chemical reaction?
Explain your answer for the last question
Candles burn:
What are the properties of this candle?
Is this a chemical reaction?
Explain your answer for the last question
Baking Soda and Vinegar Mixing:
What are the properties of baking soda and vinegar mixing?
Is this a chemical reaction?
Explain your answer for the last question
Type the number of Ca (calcium) atoms before the reaction
Type the number of O (oxygen) atoms before the reaction
Type the number of H (hydrogen) atoms before the reaction
Type the number of Ca (calcium) atoms after the reaction
Type the number of O (oxygen) atoms after the reaction
Type the number of H (hydrogen) atoms after the reaction
What happens during a chemical reaction? What is made?
What happens to the atoms that make up the molecules of substances during a chemical reaction?
Did any atoms appear or disappear?
What do you notice about the number of atoms before and after the chemical reaction?
Is there evidence of a chemical reaction when ice melts? Choose which evidence below is in the chemical reaction.
Is there evidence of a chemical reaction when a candle is burning? Choose which evidence below is in the chemical reaction. Select all that apply.
Is there evidence of a chemical reaction when ice melts? Choose which evidence below is in the chemical reaction.
