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Mashcka [7]
4 years ago
13

What are the three main types of rocks?

Chemistry
2 answers:
ludmilkaskok [199]4 years ago
7 0
Igneous,sedimentary,and metamorphic.
Rina8888 [55]4 years ago
3 0

The three types of rocks are Igneous, Sedimentary, and Metamorphic. Hope that helped! :)

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What mass of chromium (cr) is contained in 35.8 g of (nh4)2cr2o7 ?
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M{(NH₄)₂Cr₂O₇}=2A(N)+8A(H)+2A(Cr)+7A(O)

M{(NH₄)₂Cr₂O₇}=252.065 g/mol

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m{(NH₄)₂Cr₂O₇}/M{(NH₄)₂Cr₂O₇}=m(Cr)/2M(Cr)

m(Cr)=2M(Cr)m{(NH₄)₂Cr₂O₇}/M{(NH₄)₂Cr₂O₇}

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