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Chemistry, 22.06.2019 06:00
Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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In apex! a liquid heated beyond a certain temperature becomes
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Chemistry, 22.06.2019 12:00
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Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
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How many moles of (nh4)2s are there in 150 g of (nh4)2s?...
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