Does rock salt melt ice better placed before or after the ice is formed?

Subject: Does rock salt melt ice better placed before or after the ice is formed?

Date: Mon Sep 25 19:28:25 2000
Posted by CHRISTOPHER WRIGHT
Grade level: 4-6 School: RHEMA CHRISTIAN SCHOOL
City: MOON TOWNSHIP State/Province: PA Country: U.S.A
Area of science: Chemistry
ID: 969924505.Ch

Message:


I know that rock salt melts ice by lowering the freezing point and the 
better it dissolves the better it works. Can you please explain if and why 
there would be a difference if rock salt is used before the ice is formed 
or if placed after the ice is formed?

Re: Does rock salt melt ice better placed before or after the ice is formed?

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