Chemistry, 22.09.2019 07:30 KenyanaBDavis
The eight most common elements in earth's crust are: o, si, al, fe, ca, na, k, and mg. these elements account for 98% of the atoms in earth's crust. these eight elements combine chemically with one another to make six main minerals which account for 90% of the minerals in earth's crust. these minerals, the so-called the rock forming minerals, are: feldspar, pyroxene, amphibole, mica and the last, made up of the two most abundant elements, is
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Chemistry, 22.06.2019 10:10
Stage in which a typical star has completely stopped fusion
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Chemistry, 22.06.2019 23:10
Match the formula for the following compound: magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(so4)2·7h2omgso4·7h2o
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Chemistry, 23.06.2019 03:20
High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?
Answers: 3
The eight most common elements in earth's crust are: o, si, al, fe, ca, na, k, and mg. these elemen...
Mathematics, 19.05.2020 00:58
Mathematics, 19.05.2020 00:58
Mathematics, 19.05.2020 00:58
Mathematics, 19.05.2020 00:58
Mathematics, 19.05.2020 00:58
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Mathematics, 19.05.2020 01:57