Ch.7: Chemical Reactions Flashcards Preview

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Flashcards in Ch.7: Chemical Reactions Deck (13)
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1

The transformation of one or more substances into different substances.

chemical reaction

2

Chemical reaction provides evidence of

color change
emission of light
formation of a solid
emission or absorption of heat
formation of a gas

3

Remember change only the __________, to balance the a chemical equation. Never change the subscripts because changing the subscripts changes the kinds of molecules not the number of molecules.

COEFFICIENTS

4

A homogenous mixture of a substance with water

aqueous solution

5

Only ________ compounds form precipitates

insoluble

6

A chemical equation showing the complete, neutral formulas for every compound in a reaction

molecular formula

7

A chemical equation showing all of the species as they are actually present in solution

complete ionic equation

8

an equation showing only the species that actually participate in the reaction

net ionic equation

9

Redox reactions are those in which:

a substance reacts with elemental oxygen
metal reacts with a non metal
transfers electrons to another substance

10

Synthesis reaction

A + B > AB

11

Decomposition

AB > A + B

12

Single displacement:

A + BC > AC + B

13

Double displacement:

AB + CD > AD + BC