Unit 8 Chemical Changes: 5.13 Reactants and Products
How do reactants in a chemical reaction TURN INTO the products?
Bonds break in the reactants AND new bonds form in the products.
What happens in a chemical reaction?
Bonds in the atoms in the elements in the REACTANTS break and reform during the chemical reaction.
In a combustion chemical reaction, something burns. One reactant is what is burning. Oxygen is always present as a 2nd reactant. What would the chemical formula look like?
Fuel + O2 ➞ CO2 + H2O
What is a chemical reaction?
Process in which some substances change into DIFFERENT processes
What does a chemical formula look like for chemical reaction?
Reactants ➔ Products
If the chemical reaction occurs in both the chemical formula?
Reactants ➔ Products ←
True or False: a burning candle is a chemical change. Why?
TRUE. It is a chemical change (also called chemical reaction) in which some substances change into DIFFERENT substances
What are reactants?
The are substances that START a chemical reaction
What does the arrow show?
The arrow shows the direction in which the reaction occurs
What are PRODUCTS
They are the substances that are produced in the chemical reaction.
What do all chemical reactions involve?
They involve both REACTANTS and PRODUCTS
Do reactants and products contain the SAME atoms?
YES, they contain the same atoms, BUT get are rearranged during the reaction so reactants and products are DIFFERENT substances.
In a chemical reaction do the reactants and products contain the same atoms?
Yes, BUT the atoms are rearranged during the reaction. The rearrangement of the atoms make different combinations in the products. This makes the products NEW substances that are chemically different from the reactants.
How can you show the relationship between reactants and products?
You can use a chemical formula to show the relationship between reactants and products in a chemical reaction
What kind of chemical reaction is burning?
combustion reaction
In a combustion reaction (burning) what is the common name for reactants?
fuel and oxygen
What is a chemical reaction?
process that changes some substances into DIFFERENT substances.
What do all chemical reactions involve?
reactants and products
In a chemical reaction, what is a REACTANT?
substances that START a chemical reaction
In a chemical reaction, what is a PRODUCT?
substances that are PRODUCED in the the chemical reaction
In a chemical reaction, what makes the new substance called the product?
the rearrangement of the atoms to make different combinations of the same atoms Because the atoms are arranged differently, the product becomes a NEW substance with different properties
Can the reaction occur in both directions?
yes
