Topic
Q:
Given the following balanced equation, determine the limiting reagent when 5
moles of \( \mathrm{N}_{2} \) and 20 moles of \( \mathrm{F}_{2} \) are mixed.
\[ \mathrm{N}_{2}+3 \mathrm{~F}_{2} \rightarrow 2 \mathrm{NF}_{3} \]
\( \mathrm{~N}_{2} \)
OF
\( \mathrm{NF} \mathrm{F}_{2} \)
None
Q:
Given the following balanced equation, determine the limiting reagent when 12
Cr atoms and \( 20 \mathrm{Cl}_{2} \) molecules are mixed.
\[ 2 \mathrm{Cr}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{CrCl}_{3} \]
Write the molecular formula of the limiting reactant. If there is no limiting
reactant, type None.
Q:
Given the following balanced equation, determine the limiting reagent when 6
Cr atoms and \( 10 \mathrm{Cl}_{2} \) molecules are mixed.
\[ 2 \mathrm{Cr}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{CrCl}_{3} \]
Write the molecular formula of the limiting reactant. If there is no limiting
reactant, type None.
Q:
Given the following balanced equation, determine the limiting reagent when 16
moles of \( \mathrm{CaF}_{2} \) and 10 moles of \( \mathrm{Na}_{2} \mathrm{SO}_{4} \) are mixed.
\[ \mathrm{CaF}_{2}+\mathrm{Na}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+2 \mathrm{NaF} \]
Write the molecular formula of the limiting reactant. If there is no limiting
reactant, type None.
Q:
Given the following balanced equation, determine the limiting reagent when 3
moles of \( \mathrm{CaF}_{2} \) and 4 moles of \( \mathrm{Na}_{2} \mathrm{SO}_{4} \) are mixed.
\[ \mathrm{CaF}_{2}+\mathrm{Na}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{CaSO}_{4}+2 \mathrm{NaF} \]
Write the molecular formula of the limiting reactant. If there is no limiting
reactant, type None.
Q:
Given the following balanced equation, which conversion factor would you use
to convert from moles of Cr to Moles of \( \mathrm{Cl}_{2} \) ?
\( \frac{2 \mathrm{Cr}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{CrCl}_{3}}{2 \mathrm{Cr} / 2 \mathrm{CrCl} 3} \)
\( \frac{2 \mathrm{CrCl} 3 / 2 \mathrm{Cr} / 3 \mathrm{Cl} 2}{3 \mathrm{Cl} 2 / 2 \mathrm{Cr}} \)
Q:
Given the following balanced equation, which conversion factor would you use
to convert from moles of Cr to Moles of \( \mathrm{CrCl}_{3} \) ?
\[ 2 \mathrm{Cr}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{CrCl}_{3} \]
\( \begin{array}{l}2 \mathrm{Cr} / 2 \mathrm{CrCl} 3 \\ 2 \mathrm{CrCl} 3 / 2 \mathrm{Cr} \\ 3 \mathrm{Cl} 2 / 2 \mathrm{Cr} \\ 2 \mathrm{Cr} / 3 \mathrm{Cl} 2\end{array} \)
Q:
If solutions of \( \mathrm{Na}_{2} \mathrm{~S} \) and \( \mathrm{ZnSO}_{4} \) are mixed, you should expect to see [p]
precipitate.
Type the formula of the expected precipitate in the space provided. You can't
use subscripts for these types of answers, so type the subscripts as full-sized
numbers. For example, \( \mathrm{H}_{2} \mathrm{O} \) would be typed as H 2 O . If no precipitate would be
formed, type none in the answer space.
Q:
If solutions of \( \mathrm{BaCl}_{2} \) and \( \mathrm{Na}_{2} \mathrm{SO}_{4} \) are mixed, you should expect to see [p]
precipitate.
Type the formula of the expected precipitate in the space provided. You can't
use subscripts for these types of answers, so type the subscripts as full-sized
numbers. For example, \( \mathrm{H}_{2} \mathrm{O} \) would be typed as H 2 O . If no precipitate would be
formed, type none in the answer space.
Q:
If solutions of \( \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \) and NaI are mixed, you should expect to see [p]
precipitate.
Type the formula of the expected precipitate in the space provided. You can't
use subscripts for these types of answers, so type the subscripts as full-sized
numbers. For example, \( \mathrm{H}_{2} \mathrm{O} \) would be typed as H 2 O . If no precipitate would be
formed, type none in the answer space.
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