Chemistry, 09.12.2019 05:31 pickelswolf3036
In which time period did ancient greek philosophers propose that all matter was composed of four fundamental substances: earth, air, water, and wind? 8000 b. c. β 1000 b. c. 1000 b. c. β 450 b. c. 300 b. c. β 1400 a. d. 1774 β 1794 a. d. time period 1 time period 2 time period 3 time period 4 time period 1 time period 2 time period 3 time period 4
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Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 Β°c. find the volume the gas will occupy at -39.9 Β°c if the pressure remains constant.
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Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
Chemistry, 22.06.2019 23:00
If two identical atoms are bonded,what kind of molecule is formed
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In which time period did ancient greek philosophers propose that all matter was composed of four fun...
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