Justine observed that the water level in a dish placed on the window sill decreased after a few days, and vapor formed. what best explains that she observed a physical change? vapor can be easily condensed back to form water. water and its vapor react with substances in different ways. the molecular composition of water changed when the water level decreased. bonds between hydrogen and oxygen broke when the water level changed.
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Chemistry, 21.06.2019 18:30, mimithurmond03
A6.10 m nacl can be made by adding [x]g of nacl to a container and making the volume of water up to the 1.00 l line
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Draw the lewis dot structure for each of the following polyatomic ions
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Chemistry, 22.06.2019 20:20, catchonyet
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
Answers: 1
Justine observed that the water level in a dish placed on the window sill decreased after a few days...
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