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

9th Grade Science Chapter 24 Section 1

Chemical Changes Chemical change:

Atoms change bonds and form new materials

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

○ Reactants Products

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

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

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

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

msmathiot.weebly.com€¦ · Web view · 2018-02-12Do you think this process represents a chemical change or a ... But the hydrogen atoms and oxygen atoms ... You may have noticed

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