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Rachel has three different samples of rare Earth metals. The first sample has a mass of 5.5∗10−3 grams, the second has a mass of 1.4 grams, and the third has a mass of 4.4∗10−2 grams. Ignoring significant figures, what is the sum of these three masses?11.3∗10^−5 g1.4495g1.4495∗10^−5 g11.3 g

Rachel Has Three Different Samples Of Rare Earth Metals The First Sample Has A Mass Of 55103 Grams The Second Has A Mass Of 14 Grams And The Third Has A Mass O class=

Sagot :

Because each mass has the same units we can sum them

[tex]m_t=5.5\times10^{-3}+1.4+4.4\times10^{-2}[/tex][tex]m_t=1.4495g[/tex]

The sum of the 3 masses is 1.4495g

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