Chemical Properties.

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Presentation transcript:

Chemical Properties

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 ___

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

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!

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 = ?

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 + 633 g = mass HCl Solve! 651 g = mass HCl Check your answer.