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For most of its active life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. At the end of a star's lifetime, its core becomes a stellar remnant : a white dwarf , a neutron star , or, if it is sufficiently massive, a black hole .
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Answer:
No number means one atom. For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom.
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Answer:
if it forms from positive ions and has types of metallic bonds
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The molecular formula of butane is C4H10. Calculate its molar mass.58.1 g/mole 14. is answer.
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