1. Chemical Properties

2. Creating a new chemical product
Chemical Properties
Chemical properties are characteristics involved when a substance interacts with another substance to change its chemical make-up.
Flammability
Is ___
Rusting (oxidation)
Creating gas bubbles
Creating a new chemical product
Reactivity with water pH
Measures ___

3. Chemical Reaction
Chemical reaction is rearrangement of bonds in compounds and elements
Reaction obeys Law of Conservation of Mass

4. Law of Conservation of Mass
In any chemical reaction:
Matter cannot be _________
Or _________
Whatever mass you start with…
You end with
You cannot create or destroy matter in a chemical reaction!

5. Math Skills Activity p 531
18 g of hydrogen react with 644 g of chlorine. How many grams of HCl are formed?
Equation: H2 + Cl2  2HCl
What we know:
Mass H2 = 18 g
Mass Cl2 = 644 g
Mass HCl = ?

6. What equation? Put the values in! Solve! Check your answer.
Law of conservation of mass
Mass of reactants = mass of products
Put the values in!
18 g g = mass HCl
Solve!
651 g = mass HCl
Check your answer.