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Acid solution weathering
Weathering is accelerated by the presence of the hydrogen ions in water. Rain water dissolves CO2 from air to form carbonic acid, H2CO3. When this acid comes in contact with rocks that contain lime, soda and potash, the minerals containing calcium, magnesium and potassium in these rocks chemically change into carbonates and dissolve in rain water. For example calcite in limestone reacts as given below:
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so say if a car was going at 50km in a hour I would not no how to work it out help me:(
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I have 4 essay question with the answer I just need you to rewrite and paraphrase the answer I need it 12 or 2:00am is that possible ?
Lifting the water surface Bend the pointed end of a pin or use a piece of fine wire to make a hook. File the point of the hook unless it is very sharp. Put your eye on a level
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