(Solved): Consider the hypothetical atom X. If the molecular formula for lithium carbonate is LiCO3 and t ...

Consider the hypothetical atom X. If the molecular formula for lithium carbonate is Li?CO3 and the formula of X chloride is XCI3. What is the molecular formula for X carbonate? A. XCO3 B. X?CO3 C. X4CO3 D. X?(CO3)3 E. X(CO3)4 Which has the lowest mass percent of hydrogen? A. C?H? B. C4H10 C. C3H4OH D. C?H5OH E. C4H6 What is the change in the oxidation number of nitrogen in the following reaction 2HNO3 + 3H3ASO3 ? 2NO + 3H3ASO4 + H?O A. +5 to -1 B. -5 to +2 C. +1 to -5 D. +5 to -2 E. +5 to +2