1. What is the oxidation number of carbon in Ca(HCO3)2? A. -4 B. 0 C. +4 D. +5 2. In which of the following substances d

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1 What Is The Oxidation Number Of Carbon In Ca Hco3 2 A 4 B 0 C 4 D 5 2 In Which Of The Following Substances D 1 (51.07 KiB) Viewed 24 times

1. What is the oxidation number of carbon in Ca(HCO3)2? A. -4 B. 0 C. +4 D. +5 2. In which of the following substances does nitrogen exhibit the lowest oxidation number? A. NaNO2 B. ΗΝΟ, C. NH4Cl D. N2 3. In which of the following compounds is the oxidation number of oxygen NOT equal to -2? A. Mgo B. Н,0 C. Co D. F20 4. Which of the following is a redox reaction? A. CO2(g) + Ca(OH)2(aq) → CaCO3(s) + H2O(1) B. HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(1) C. Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(1) D. 2AgNO3(s) → 2Ag(s) + 2NO2(g) + O2(g) 5. The atomic structure of an element is: Number of protons Number of electrons Number of neutrons 19 19 20 In its compounds, this element is most likely to have an oxidation number of A. +2. B. +1. C. -1. D. -2. - -