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Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
Chemistry, 22.06.2019 17:20
Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.
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Chemistry, 23.06.2019 03:30
Ineed pls urgent 1-20 in order and fully detail step my step.
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Chemistry, 23.06.2019 04:00
Which method would be best to separate a mixture of sand and gravel
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An 11.2 gram block of ice melts at 0'c. what is the change in entropy (in j/k) associated with this...
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