Your mass can never change no matter where you are since mass is the amount of matter you contain. By going to the moon, you do become lighter due to the weaker gravity but the amount of matter that you are made of (your mass) does not change.
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Answer:
A. Magnesium
Explanation: Its because Magnesium is Heavier than Bromine and there is 24.3050 atom in Magnesium but there is only two in Bromine
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From what is given, double replacement is what it is
Answer:
ozone .which has three atoms of oxygen...am not sure with my answer...i was just trying.
It is a physical change, the reason being is that it only changes a physical property it does not change the molecular composition.