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melisa1 [442]
3 years ago
14

The mass of an unidentified rock is 15.5 grams. Students determine the volume of the rock by placing the rock in a cylinder with

water. The students calculate the density of the rock. They determine the identity of the rock based on the density ranges in the table.
Rock Density Ranges
Rock Density Range
(g/cm3)
Coal 1.1-1.4
Dolomite 2.8-2.9
Peridotite 3.1-3.4
Sandstone 2.2-2.7

The students most likely have which type of rock?

A: Coal
B: Dolomite
C: Sandstone
D: Peridotite
Chemistry
1 answer:
Otrada [13]3 years ago
6 0
Answer: I’m pretty sure that it’s C.
Hope this helps :)
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decreasig pH:

NaClO2 > NaBrO2 > NaBr >NH4Br

Note that HClO2 is stronger acid than HBrO2, therefore, expectmore HBrO2 formation

NaBrO2 > NaClO2 > NaBr >NH4Br

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3.D

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