BONUS HW: What is the double replacement reaction responsible for the dissolving of marble by acid rain?

Marble is composed mainly of calcium carbonate.
Calcium Carbonate - CaCO3
The corroding element of acid rain is Sulfuric Acid
Sulfuric Acid - H2SO4
So the reactants would be CaCO3 and H2SO4
CaCO3 + H2SO4 ----> Ca + SO4 + H2O + CO2
In other words, Marble and Acid Rain react to produce calcium, sulfur oxide, water, and carbon dioxide.

Robert Cheng

 

THERMITE REACTION

Record the reaction with symbols and with words.  Make sure it is balanced.

Fe₂O₃ + 2Al → 2Fe + Al₂O₃

Iron (III) Oxide and Aluminum react to form Iron and Aluminum Oxide.

Thermite reactions create short burst of very high temperatures. It is commonly used to join railroad tracks, since the separately-shipped pieces have to be joined for trains to run smoothly. The process of using the thermite reaction to create the heat that joins two pieces of metal together is called thermite welding.

Try to find another example of a useful single replacement reaction.

Another example of a single replacement reaction is the reaction that chemically creates silver, which we learned about earlier this year.

This reactants in this case would be Zinc and Silver Nitrate and the products would be Zinc Nitrate and Silver.