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Chemistry
28.12.2022 18:15
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Anew penny has a mass of 2.49 g and a volume of 0.349 cm3. is the penny made of

Anew penny has a mass of 2.49 g and a volume of 0.349 cm3. is the penny made of pure copper?
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davidjgonzalez9
davidjgonzalez9
4,5(69 marks)
Yes it is. Copper is the same mass and volume. Plus all pennies are made of copper
breannaratliff23
breannaratliff23
5,0(78 marks)

Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.

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