Chemistry, 17.09.2019 05:00, gerardogonzale2294
The early alchemists used to do an experiment in which water was boiled for several days in a sealed glass container. eventually, some solid residue would appear in the bottom of the flask, which was interpreted to mean that some of the water in the flask had been converted into "earth." when lavoisier repeated this experiment, he found that the water weighed the same before and after heating, and the mass of the flask plus the solid residue equaled the original mass of the flask. were the alchemists correct?
Answers: 1
Chemistry, 22.06.2019 05:30, NorbxrtThaG
The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?
Answers: 1
Chemistry, 22.06.2019 13:30, kassandrarosario1115
How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
Answers: 1
Chemistry, 22.06.2019 14:30, Hannahmiller3773
Connect the whole numbers on the periodic table to indicate what they represent?
Answers: 3
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