Bidboidipper
03.02.2020 •
Chemistry
If you burn 50.6 g of hydrogen and produce 452 g of water, how much oxygen reacted?
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Ответ:
Mass of reactants=Mass of Products
Let mass of Oxygen be x.
So,
50.6+x=452
x=452-50.6
=401.4 g
Ответ:
Cesium.
Groups are the vertical columns that run up and down while periods are the horizontal rows. So to find the answer to this, go to the first column (Group 1) and find the sixth period (row 6) which will land you on Cesium, element 55.
Hope this helps!