Slide 1 of 37 © Copyright Pearson Prentice Hall Describing Chemical Reactions > Writing Chemical...

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© Copyright Pearson Prentice Hall

Describing Chemical Reactions

> Writing Chemical Equations

Word Equations

To write a word equation, write the names

of the ___________ to the _____ of the

_________ separated by _______

_________; write the names of the

___________ to the _______ of the arrow,

also separated by _________ _________.Reactant + Reactant Product + Product

11.1

Methane + Oxygen Carbon dioxide + Water

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Chemical Equations

A ___________ ______________is a

representation of a chemical ___________;

the formulas of the ____________ (on the

_______) are connected by an arrow with the

formulas of the ___________ (on the

________).

11.1

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Write the formulas of the

______________ to the ________ of the

_____________ sign (arrow) and the

formulas of the ______________ to the

______________.

11.1

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A _____________ equation is a chemical

equation that does ______ indicate the

_________ ____________ of the reactants

and products.

Here is the equation for rusting:

Fe + O2 Fe2O3

11.1


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Slide 6 of 37

Practice Problems for Conceptual Problem 11.1


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> Balancing Chemical Equations

To write a ____________ chemical

equation, first write the _________

equation. Then use _____________ to

balance the equation so that it obeys the

______ of conservation of ________.

11.1

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> Balancing Chemical Equations

A chemical reaction is also described by a

balanced equation in which each side of the

equation has the __________ ___________

_______ _______________ of each

____________ and mass is conserved.

11.1


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