CuFes2 > Cu2+

Process: copper is dug up as ore and moved to leaching pad, where hydrochloric acid is added to the ore.  The copper seperates from the mixture in a pure form.  It is then collected.

electricity generated from moving water

-water goes through turbines and spin them, creating electricity

It was drained and dammed for agriculture. 

the cost was the flow of water decreased and now it's on the brink of biological collaspe.

What is the difference between a tailings pile and waste rock?

Different types of materials and minerals

Used in cable covering

Used in plumbing

Highly Ductile and Malleable

 Poor conductor of electricity. Carbon Metal. Dense and Durable. Was an organic element.

What is the difference between an oxidation reaction and a reduction reaction?

Oxidation Reaction is a process in which the atom or ion is INCREASING its oxidation state.

Reaction Reduction is the atom or ion DECREASING its oxidation state

FeS2 + 14H2O +15O2 = 4Fe(OH)3 + 8SO42- + 16H+

In words: pyrite (FeS2) + water + oxygen is transformed through a chemical reaction to iron oxide (Fe(OH)3) + sulfuric acid.  Sulfuric acid (H2SO4) shows up in water as sulfate ion (SO42-) and hydrogen ion (H+) which determines the acidity through pH.

The batteries are generally called lead-acid batteries which is a pretty good description of the chemical process that takes place inside.

 their ability to supply highsurge currents means that the cells maintain a relatively large power-to-weight ratio. These features, along with their low cost, make them attractive for use in motor vehicles to provide the high current required by automobile starter motors.

Where is the Rosemont copper mine proposed site?

How big will the open pit mine be?

6,500 ft across north to south, 6,000 ft across east to west, and will be about 1,800 to 2,900 ft deep. The pit bottom elevation is projected at 3,150 ft above msl. The pit area totals about 700 ac

What minerals are they going to mine?

copper, gold, and molybdenum

Is open pit mining reversible?

Are mined minerals such as copper, renewable or nonrenewable resources?

How many abandoned mines are in Arizona?

How do these abandoned mines still impact the environment today?

Many of these mine features are relatively insignificant, such as shallow trenches and small exploration pits. However, others pose physical and environmental hazards which will require some form of remediation or closure.  

Why is it hard to grow plants on mining waste rock and tailing piles?

Tailings ponds are toxic to living things. Piles of material that are very difficult to revegetate (No organic matter and very low pH) These piles are subject to erosion

What is industrial ecology?

is the study of material and energy flows through industrial systems. The global industrial economy can be modeled as a network of industrial processes that extract resources from the Earth and transform those resources into commodities which can be bought and sold to meet the needs of humanity.

Advantages

• Inexhaustible fuel source
• Minimal environmental impact
• Viable source--relatively useful levels of energy production
• Can be used throughout the world

Disadvantages

• Smaller models depend on availability of fast flowing streams or rivers
• Run-of-the-River plants can impact the mobility of fish and other riverlife. NOTE: Building a fish ladder can lessen this negative aspect of hydroelectric power