I work as a substitute teacher.
Draw two linkage isomers of [Mn(NH3)5(NO2)]2+.
Challenge For each of the following, balance the chemical equation; interpret theequation in terms of particles, moles, and mass; and show that the law of conservationof mass is observed.a. ___$\mathrm{Na}(\mathrm{s})+$____$\mathrm{H}_{2} \mathrm{O}(1) \rightarrow$____$\mathrm{NaOH}(\mathrm{aq})+$____$\mathrm{H}_{2}(\mathrm{g})$b.___$Z n(s)+$____$\mathrm{HNO}_{3}(\mathrm{aq}) \rightarrow$____$\mathrm{Zn}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{aq})+$____$\mathrm{N}_{2} \mathrm{O}(\mathrm{g})+$____$\mathrm{H}_{2} \mathrm{O}(\mathfrak{l})$
Challenge Balance the following equations, and determine the possible mole ratios.\begin{equation}\begin{array}{l}{\text { a. } \mathrm{ZnO}(\mathrm{s})+\mathrm{HCl}(\mathrm{aq}) \rightarrow \mathrm{ZnCl}_{2}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l})} \\ {\text { b. butane }\left(\mathrm{C}_{4} \mathrm{H}_{10}\right)+\text { oxygen } \rightarrow \text { carbon dioxide }+\text { water }}\end{array}\end{equation}
State how many mole ratios can be written for a chemical reaction involvingthree substances.
Apply The general form of a chemical reaction is $x A+y B \rightarrow z A B$ . In the equa-tion, $A$ and $B$ are elements, and $x_{i} y$ , and $z$ are coefficients. State the mole ratiosfor this reaction.
Model Write the mole ratios for the reaction of hydrogen gas and oxygen gas,$2 \mathrm{H}_{2}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{g}) \rightarrow 2 \mathrm{H}_{2} 0 .$ Make a sketch of six hydrogen molecules reacting withthe correct number of oxygen molecules. Show the water molecules produced.
