Chemistry Chapter 7 and 8

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Precipitation Reaction

Form Solid substances in water

Combustion Reaction

Hydrocarbons combine with oxygen to form carbon dioxide and water

Gas Evolution Reaction

Formation of a gas is evidence of a chemical reaction

Evidence of a Chemical Reaction

Color Changes
Formation of a Solid
Formation of a gas
Heat Absorption or emission
Light Emission

Substances on the left side

Reactants

Substances on the right side

Products

Aqueous Solutions

Compounds dissolved in water

Soluble

Dissolves in that liquid

Insoluble

Does not dissolve in the liquid

Molecular equation

Showing complete neutral formulas for every compound in the reaction

Complete Ionic equations

Equations showing the reactants and products as they are actually present in solution.

Spectator Ions

Ions that appear unchanged on both sides of the equations. Do not participate in the reaction.

Net ionic Equation

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

Acid+Base ->

Water + Salt (ionic compound)

Acid-Base Reaction

Reactions that form water upon mixing an acid and base.

Acids

H+ ions

Base

OH- ions

Oxidation

Loss

Reduction

Gain

Redux Reaction

Reacts with Oxygen
Metal Reacts with Non-Metal
Transfers electrons

Combustion Reaction

A Type of Redox reaction

Combustion Reaction

Reaction of a substance with O2 to form oxygen containing compounds.

Greenhouse gases

Certain gases in Earths atmosphere affect the balance between incoming sunlight because they Trap heat.

Greenhouse gases

allow sunlight in the atmosphere to warm earth but prevent heat from escaping.

Co2

Earths most significant greenhouse gas

Global Warming

Increase in earths average temperature

Stoichiometry

The numerical relationship between chemical quantities in a balances chemical equation

Limiting Reactant

The reactant that is completely consumed in a chemical reaction.

Theoretical Yield

The amount of product that can be made in a chemical reaction based on the amount of limiting reactant

Actual Yield

Amount of Product actually produced by a chemical reaction

Percent Yield

Actual Yield/ Theoretical Yield x 100

Elemental Oxygen

O2

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