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Chemistry

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Mose Ziemann

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Cards in this guide (18)
What is an oxidizing agent

A substance that oxidizes another substance

Any chemical substance that has a tendency to accept electrons and thereby undergoing reduction themselves is known as an oxidising agent.

An oxidizer is a compound that supplies its own oxygen and heat when in contact with organic compounds. These chemicals that can react vigorously and explode.

Oxidizers are compounds which are capable of reacting with and oxidizing (i.e., giving off oxygen) other materials. A well known example of oxidation is the process we know as corrosion, where the metal reacts with air to form the metal oxides referred to as "rust".

The primary hazard associated with this class of compounds lies in their ability to act as an oxygen source, and thus to readily stimulate the combustion of organic materials. As you may recall, it takes three components for a fire to happen - a fuel source (usually an organic compound, such as paper), an ignition source (such as a flame, a spark, friction, etc.) and an oxygen source (in this case - a cylinder of OXYGEN, a strong oxidizer).

Oxidizers may be grouped into 4 classes based on their ability to affect the burning rate of combustible materials or undergo self-sustained decomposition. This classification system was established by the National Fire Protection Association (NFPA 43A, 1980) as a means to provide information on safe storage of oxidizing materials.

Class 1: An oxidizing material whose primary hazard is that it may increase the burning rate of combustible material with which it comes in contact

Class 2: An oxidizing material that will moderately increase the burning rate of which may cause spontaneous ignitionof combustible material with which it ocmes in contact.

Class 3: An oxidizing material that will cause a severe increase in the burning rate of combustible material with which it comes in contact or which will undergo vigorous self-substained decomposition when catalyzed or exposed to heat.

Class 4: An oxidizing material that can undergo an explosive reaction when catalyzed or exposed to heat, shock or friction.

What is the basic unit of chemistry

The atom

How is stoichiometry used

Stoichiometry is used to find the molar ratios between the reactants of a chemical reaction.

What is the mass percent composition of an element in a molecule

Percentage composition= (mass of the element/mass of the molecule)*100

The fraction of the molecule's mass that comes from the element's mass

How is stoichiometry used to calculate the amount of product produced

Stoichiometry relates moles of reactant to moles of product, so if you have the amount of reactant in the equation, you can calculate the amount of product produced.

How do atoms show both unity and diversity

There are relatively few atoms, but they make many molecules.

What can be said about a redox reaction that has a positive potential

. The reaction will be spontaneous.

What makes balancing redox reactions different from balancing other reactions

Balancing redox reactions is different from balancing other reactions because both the number of atoms and the amount of charge must be balanced.

What happens to the anode in an electrochemical cell

it loses mass

What happens at the cathode in an electrolytic cell

Reduction occurs at the cathode in an electrolytic cell.

What needs to be considered in balancing redox reactions

Both atoms and charge

Which of the following best describes a galvanic cell

A battery containing a spontaneous redox reaction

Which is the least likely to be reduced

Mg2+

What is the oxidizing agent in the reaction Fe AgNO3 FeNO33 Ag

AgNO3 #APEX

What characteristics indicates that an atom is unstable

by creating very strong bonds

All life on earth is ultimately dependent on what

The sun for energy

Reduction occurs at which electrode

The electrode that removes ions from solution

Which is the most likely to be reduced

something about "native" should be ur answer..apex

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