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Chemistry, 21.06.2019 18:30
How much energy moves onto the next level, in an energy pyramid
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Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine
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Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
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C2h6 (g) + o2 (g) → co2 (g) + h2o (g) (not balanced) determine the number of liters of co2 formed at...
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