Chemical Reactions III Flashcards Preview

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Flashcards in Chemical Reactions III Deck (11):
0

Physical property

Characteristic that can be observed without changing the identity of the substance

1

Physical property ex

Melting point
Viscosity
Density
Solubility
Hardness
Luster
Malleability
Ductility

2

Chemical property

Characteristic that's observed during a reaction and identity/chemical composition of the substance changes

3

Chemical properties ex

Flammability
pH
Reactivity
Toxicity

4

Physical change

A usually reversible change in the physical property of a substance (change in state or phase)

Cutting grass

5

Chemical change

An irreversible chemical reaction involving the rearrangement of atoms and a change in their chemical properties (chemical reaction)

6

Chemical change ex

Burning
Digesting
Cooking
Rust

7

Signs of a chemical change

Color change
Precipitation
Gas
Temp change

8

Catalyst

Increases rate if chemical reaction

9

Inhibitor

Slows or prohibits a chemical reaction

10

Equilibrium

A chemical reaction in which the forward and reverse reactions occur at equal rates