Chemistry, 14.01.2021 01:00 alexiagreen1212
Who was the first person to see cells under the microscope and give them a name?
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Chemistry, 21.06.2019 20:30
Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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Chemistry, 22.06.2019 06:00
There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit
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Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) β co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) β co2(g) k=1.363Γ10^69 b. 2 h2(g) + o2(g) β 2 h2o(g) k=1.389Γ10^80 c. 2co(g) + o2 (g) β 2 co2(g) k=1.477Γ10^90
Answers: 1
Who was the first person to see cells under the microscope and give them a name?...
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