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Chemistry, 21.06.2019 20:30
Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?
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Chemistry, 22.06.2019 01:00
Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon
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Chemistry, 22.06.2019 08:00
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
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Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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If an astronaut in full gear has a weight of 1200 N on Earth, how much will the astronaut weigh on t...
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