New 13.1 Flashcards
What is Metallurgy?
The science and technology of extracting metals from their naturally occurring compounds, and adapting those metals for useful purposes
What does reduction mean in terms of metals?
Producing metals from their compounds
What does a reducing agent do?
Causes the reduction of a metal compound to an elemental meta
What is the process of corrosion chemically similar to?
Combustion, but corrosion occurs more slowly
What does corrosion do to metal?
Returns metal to its natural state
What is an oxidizing agent?
A substance that causes or promotes the oxidation of metal to produce a metal compound
What is oxidation?
Producing compounds of metals from an elemental metal
What is a half reaction?
A half reaction represents what is happening to one reactant in an overall reaction. A balanced equation that represents a loss or gain of electrons
What is electrochemistry?
The study of how electrons are transferred from one chemical to another
What do electrochemical chemical reaction involve?
A loss of electrons by one reactant and gain of electrons by another reactant
What does an exothermic reaction look like?
Reactants ➡ Products + Electrons
What does an endothermic reaction look like?
Reactants + electrons ➡ Products
What does LEOra mean?
Loss of Electrons is Oxidation. And it is the Reducing Agent
What does GERoa mean?
Gain of Electrons means Reduction. And it is the Oxidation Agent
What does redox mean?
Reduction and Oxidation occur simultaneously
What is an oxidation half reaction?
A reaction that shows that shows a loss of electrons
What is a reduction half reaction?
A reaction that shows a gain of electrons
What are the steps to writing the half reactions for acidic solutions?
1) Write out the chemical formula for the products and reactants
2) Balance out all other atoms except for O and H
3) Balance O by adding H2O
4) Balance H by adding H+
5) Balance the charge on each side by adding e-
What is disproportionation?
A reaction where species are both oxidized and reduced
