Limestone, weathering, metal, word equation

[lwymarie]

Limestone is used to whiten and provide bulk to paper.
What is the meaning of 'provide bulk'?

Weathering occures through the actions of water, wind, air and changes n temperature.
What is the difference between wind action and air action?

What properties are changed/added/subtracted when a metal rusts?

Please write a word equation of the reaction between chalk and nitric acid.

 

[ShawnD]

Weathering occures through the actions of water, wind, air and changes n temperature.
What is the difference between wind action and air action?

What is in the air that destroys things? If the air was made of argon, would it still destroy metals?

What properties are changed/added/subtracted when a metal rusts?

What are the properties of most oxides?

Please write a word equation of the reaction between chalk and nitric acid

calcium carbonate + nitric acid --> calcium nitrate + carbon dioxide + something else?

 

[Borek]

What is the difference between wind action and air action?

Perhaps wind means mechanical action and air chemical action. But that's just a guess.


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