document.write( "Question 394819: the latent heat of fusion for ice is 80 cal/g how much heat required to melts 2g of ice is? \n" ); document.write( "

Algebra.Com's Answer #280160 by jrfrunner(365) $\"\"$ $\"About$

You can put this solution on YOUR website!
when solving these types of equations, look at what you have and what you need.
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\n" ); document.write( "you have an identiy 79.8 calories/1gram , this identity can be written as 1gram/79.8calories. It can be used either way depending on what you need.
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\n" ); document.write( "you have 1000 calories and want to find grams
\n" ); document.write( "so set up your expression
\n" ); document.write( " $\"1000cal%2A%281gram%2F79.8cal%29\"$
\n" ); document.write( " notice that I used this form of the identity so I could cross cancel the units and leave me with grams.
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\n" ); document.write( " $\"%281000cross%28cal%29%2A1gram%29%2F79.8cross%28cal%29\"$ =12.53 grams
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