Chemistry

Chemistry, 26.09.2019 10:30, chickennbutt0730

To which mineral group does orthoclase feldspar kalsi3o8 belong

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Chemistry, 05.07.2019 16:00, evelin23

To which mineral group does orthoclase feldspar (kaisi3o8) belong? a). the oxides b). the carbonates c). the silicates d). the halides

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Physics, 31.07.2019 17:00, cannaincorporated

One student did an experiment with two unknown minerals, mineral 1 and mineral 2. the hardness scale shown below was used for the experiment. mineral talc gypsum calcite fluorite apatite orthoclase hardness 1 2 3 4 5 6 any mineral on the hardness scale would scratch minerals below it on the scale. the student tested mineral 1 and observed that it could scratch only two other minerals on the hardness scale. it was observed that mineral 2 could scratch only four other minerals on the hardness scale. which of these is a correct conclusion the student can make about mineral 1 and mineral 2? a) mineral 1 can be used to scratch talc and mineral 2 can be used to scratch orthoclase. b) mineral 1 can be used to scratch orthoclase and mineral 2 can be used to scratch talc. c) mineral 1 can be used to scratch calcite and mineral 2 can be used to scratch gypsum. d) mineral 1 can be used to scratch gypsum and mineral 2 can be used to scratch calcite.

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Biology, 19.09.2019 12:10, PineaPPle663

Potassium feldspar (kalsi3o8) is in which mineral class? silicates carbonates oxides sulfides

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