Assume that one grain of sand has an average size of 1 millimeter across. based on the chemical composition of sand, can you guess how many atoms are in just one grain of sand? twenty million? twenty billion? keep going. twenty trillion? twenty quadrillion? you're not there yet! twenty quintillion—or the number 2 followed by nineteen zeros—is an approximation of the number of atoms in one grain of sand. but how much is that?
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Chemistry, 22.06.2019 12:30
Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)
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Chemistry, 22.06.2019 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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Chemistry, 22.06.2019 14:30
Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:
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Chemistry, 22.06.2019 15:20
Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2
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Assume that one grain of sand has an average size of 1 millimeter across. based on the chemical comp...
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