The masses of two metal blocks are measured. block a has a mass of 8.45 g and block b has a mass of 45.87 g. how many significant digits are expressed in these measurements? what is the total mass of block a plus block b? what is the number of significant digits for the total mass?
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The masses of two metal blocks are measured. block a has a mass of 8.45 g and block b has a mass of...
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