Chemistry, 15.01.2020 19:31 damienlopezram
What is the percent by mass of oxygen in carbon dioxide (co2)?
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%element=total mass of element in compound/molar mass of compound -x100
27.29%
57.12%
72.71%
79.99%
Answers: 2
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The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
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Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2
Answers: 2
What is the percent by mass of oxygen in carbon dioxide (co2)?
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