9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and...

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9 th Grade Science Chapter 24 Section 1

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Law of Conservation of Mass  Antoine Lavoisier (1743 – 1794) Tested great many experiments Mass of products equals mass of reactants Law: matter cannot be created or destroyed in a chemical reaction Matter (atoms) is just rearranged in reaction

Transcript of 9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and...

Page 1: 9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and form new materials Chemical reaction: Process of.

9th Grade Science Chapter 24 Section 1

Page 2: 9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and form new materials Chemical reaction: Process of.

Chemical Changes Chemical change:

Atoms change bonds and form new materials

Chemical reaction: Process of chemical changeReactants:Products:Written as chemical equation

○ Reactants Products

Page 3: 9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and form new materials Chemical reaction: Process of.

Law of Conservation of Mass Antoine Lavoisier (1743 – 1794)

Tested great many experimentsMass of products equals mass of reactantsLaw: matter cannot be created or destroyed

in a chemical reactionMatter (atoms) is just rearranged in reaction

Page 4: 9 th Grade Science Chapter 24 Section 1. Chemical Changes Chemical change: Atoms change bonds and form new materials Chemical reaction: Process of.

Chemical Equation Equation describes what happens in

chemical reaction Uses formulae and coefficients to

indicate type and amount of reactants and products

Example: nickel (II) chloride dissolved in water reacts with sodium hydroxide dissolved in water to produce solid nickel (II) hydroxide and sodium chloride dissolved in water


Atoms & Chemical Rxns - Ms Birkholz - Home

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Chemical Equilibrium unit 4 Lecture 2. Chemical Change Recap Chemical change occurs when the atoms that make up one or more substances rearrange themselves.

Chemical Equilibrium unit 4 Lecture 2. Chemical Change Recap Chemical change occurs when the atoms that make up one or more substances rearrange themselves.

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Quantitative aspects of chemical change · Quantitative aspects of chemical change. MOLE is the SI-unit for the quantity of a substance. There are 6,02 x 1023 atoms in 12g Carbon-12

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