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rocks.
ll in the blanks:
Fossils are trapped in layers of
rock.​

By Isabella

rocks.
ll in the blanks:
Fossils are trapped in layers of
rock.​

About the author
Isabella

The RD of a substance is 54, if its volume is 100 cm⁻³, find its mass. *​

MnO2 + 4HCl → MnCl2 + H2O + Cl2

The oxidizing agent is

(a) MnO2 (b) HCl (c) MnCl2 (d) H2O​

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