Your expression states blank charges, which indicate a negative charge. a negative charge always attracts a positive charge in order to receive the desired affect..please check..
Answer:
Nuclear Fission is a nuclear reaction or a Radioactive decay progress in which the necleus of an atom splits into two or more smaller, lighter neclei
Metals and non-metal take part in displacement reactions.

Here's the balanced chemical equation for above reaction ~

Here, fluorine is more more more reactive than Bromine, therefore it replaces Bromine from its compound and forms Lithium floride.
Answer:

Explanation:
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In this case, since the molecular formula of barium sulfate is:

Which has four oxygen atoms, we can also say that one mole of barium sulfate has four moles of oxygen; in such a way, the moles of oxygen atoms in 1.50 moles of barium sulfate are:

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