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Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent
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Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule
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Which statement best describes the he properties of iconic compounds ?
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How many total "elements" are in the chemical equation?
H2 + O2 + H2 ā H2O + H2O
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