Answer:
Explanation:
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the answer is 360 g H2O with a 90.3 yeild percentage
Thw answer is PHj78 JJ CP30 R2D2
Answer:
the us and the soviet union
Explanation:
2 shells because if you do the electronic configuration:
2,7 which adds up to 9
7 stands for the group it in and it also stands for how many electrons are in the outer shell.
the amount of spaces stands for which period its in therefore it in period 2
