What is the Lewis structure for phosphorus tribromide (PBr$_3$)?

Draw the Lewis structure for ammonium ion.

Determine the formal charge on each atom in the following molecules or ions: (a) $\mathrm{SCO}$ (b) $\mathrm{HCO}_2^{-}$(formate ion) (c ) $\mathrm{CO}_3{ }^{2-}$ (d) $\mathrm{HCO}_2 \mathrm{H}$ (formic acid)

Draw a Lewis structure and calculate the formal charge of each atom in
(a) COS (C is central);

Label the molecular shape around each of the central atoms in the amino acid glycine.

Draw the Lewis structure of the following molecule. Include lone pairs: HCN

Draw a Lewis structure for the azide ion. Include all possible resonance structures. Which resonance structure is most likely?

A nitrogen trifluoride molecule contains numerous lone pairs. Draw its Lewis structure.

How to draw a Lewis structure for H$_3$O$^+$ ion?

What is the Lewis structure of carbon monoxide?

How to draw a Lewis structure of carbon monoxide?

This is the chemical formula for zinc bromate: Zn(BrO3)₂ Calculate the mass percent of bromine in zinc bromate. Round your answer to the nearest percentage.

Which of the following is not a form of loose connective tissue? A. adipose, B. areolar, C. columnar, D. reticular.

In the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent and glucose is broken down to ethanol and CO2. Ethanol is oxidized to CO2 and H2O. (a) Balance the following equations for these processes: Respiration: $\mathrm { C } _ { 6 } \mathrm { H } _ { 12 } \mathrm { O } _ { 6 } ( s ) + \mathrm { O } _ { 2 } ( g ) \longrightarrow \mathrm { CO } _ { 2 } ( g ) + \mathrm { H } _ { 2 } \mathrm { O } ( l )$ Fermentation: $\mathrm { C } _ 6 \mathrm { H } _ { 12 } \mathrm { O } _ { 6 } ( s ) \longrightarrow \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { OH } ( l ) + \mathrm { CO } _ { 2 } ( g )$ Ethanol oxidation: $\mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { OH } ( l ) + \mathrm { O } _ { 2 } ( g ) \longrightarrow \mathrm { CO } _ { 2 } ( g ) + \mathrm { H } _ { 2 } \mathrm { O } ( l )$