I think ita c sense its the same object
It is not B it is A, wave 1 waves are more spread apart so that means it has a bigger wave length, and the frequency is how many waves there are in one second so the smaller waves would have the higher frequency so it would be A hope this helps.
The balanced chemical equation Lead IV oxide decomposes
to yield lead II oxide and a colorless gas is
Pb3O4 → 3PbO + 1/2O2(g). The key in the balancing of
chemical reaction is to make sure that you got the exact chemical formula of
the substance that is reacting and the yielded product. After getting the
formula, identify first the hardest element/atom to be balanced such as Na, Zn,
Cl, etc. Then proceed to the easier ones such as O, H. Make sure to not the
atoms present in the molecule of the substance.