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Home Question Bank Chemistry Archive 2024 December 06

Chemistry Questions from Dec 06,2024

Browse the Chemistry Q&A Archive for Dec 06,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Part A How can you use the activity series to determine whether a metal will dissolve in acids such as HCl or HBr ? Metals above \( \mathrm{Fe}^{2+} \) on the activity series will dissolve in acids, while metals below \( \mathrm{Fe}^{2+} \) will not dissolve in acids. Metals above \( \mathrm{Fe}^{2+} \) on the activity series will dissolve in acids, while metals below \( \mathrm{Fe}^{2+} \) will not dissolve in acids. Metals below \( \mathrm{H}_{2} \) on the activity series will dissolve in acids, while metals above \( \mathrm{H}_{2} \) will not dissolve in acids. Metals above \( \mathrm{H}_{2} \) on the activity series will dissolve in acids, while metals below \( \mathrm{H}_{2} \) will not dissolve in acids. Submit Request Answer \( \mathrm{Ca}(s)+\mathrm{Cl}_{2}(g) \rightarrow \mathrm{CaCl}_{2}(s) \) Express your answer as a chemical formula. \( 2 \mathrm{Sr}(s)+\mathrm{O}_{2}(g) \rightarrow 2 \mathrm{SrO}(s) \) Express your answer as a chemical formula. 13. El \( \mathrm{H}_{2} \mathrm{O} \) está formada por un átomo de oxígeno y dos átomos de hidrógeno. Si el oxígeno tiene 6 electrones de valencia y el hidrogeno tiene 1 . ¿Cuántos electrones comparte el átomo de oxígeno con cada átomo de hidrógeno? A) 1 B) 2 C) 6 D) 7 E) 3 In which of the following sets are the charges given correctly for all the ions? a. \( \mathrm{Na}^{+}, \mathrm{Mg}^{+}, \mathrm{Al}^{+} \) b. \( \mathrm{K}^{+}, \mathrm{Sr}^{2+}, \mathrm{O}^{2-} \) c. \( \mathrm{Rb}^{-}, \mathrm{Ba}^{2-}, \mathrm{P}^{3+} \) d. \( \mathrm{N}^{-}, \mathrm{O}^{2-}, \mathrm{F}^{3-} \) \( 2 \mathrm{Zn}(\mathrm{s})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{ZnO}(\mathrm{s}) \) Express your answer as a chemical formula. Which equation describes an oxidation? View Available Hint(s) \( \begin{array}{l}\mathrm{Cl}_{2}+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{Cl}^{-} \\ \mathrm{Ni}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Ni} \\ \mathrm{Li} \rightarrow \mathrm{Li}^{+}+\mathrm{e}^{-} \\ \mathrm{O}_{2}+4 \mathrm{e}^{-} \rightarrow 2 \mathrm{O}^{2-} \\ \text { Submit }\end{array} \) How do you find the equilibrium of an acid base? \( \leftrightarrow \) Reply | Like । Mark as Unread Consider the reaction below. Which species is(are) the Brønsted-Lowry acid(s)? \( \mathrm{HF}(\mathrm{aq})+\mathrm{NH}_{3}(\mathrm{aq}) \rightleftharpoons \mathrm{NH}_{4}^{+}(\mathrm{aq})+\mathrm{F}^{-}(\mathrm{aq}) \) B Use the half-reaction method to balance the following redox reaction occurring in acidic aqueous solution: \[ \mathrm{PbO}_{2}(\mathrm{~s})+\mathrm{I}^{-}(\mathrm{aq}) \rightarrow \mathrm{Pb}^{2+}(\mathrm{aq})+\mathrm{I}_{2}(\mathrm{~s}) \] Express your answer as a chemical equation including phases.
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