3 spiega la differenza che c'è tra e l'acido ortofosforico e l'acido metafosforico A. La quantità di anidride che reagisce con l'acqua differisce per formare i due acidi B. Le anidridi sono fatte reagire con quantitativi diversi di acqua \( \begin{array}{ll}\text { C. La valenza del fosforo cambia nei due casi } & \text { D. Nulla di tutto ciò }\end{array} \)

Which of the following molecule(s) have lone pair electrons and/or non-identical central bonds? \( \mathrm{CCl}_{4} \) \( \mathrm{CHCl}_{3} \) \( \mathrm{SO}_{3} \) \( \mathrm{CO}_{2} \mathrm{O} \)

Please select the molecule(s) with resonance structures from the following. CCl 4 CHCl 3 SO 3 H 2 O None

Based on your worksheet results, please match the following: The electron group geometry of CCl 4 is The electron group geometry of CHCl 3 is [Choose ] [Choose ] The electron group geometry of \( \mathrm{SO}_{3} \) is [Choose ] [Choose ] electron group geometry of H 2 O is [Choose ]

Please select polar molecule(s) from the following. \( \square \mathrm{CCl} 4 \) \( \square \mathrm{CHCl} 3 \) \( \square \mathrm{CO} 3 \) CO 2

Which of the following represent a buffer system? Check all that apply. \( \square \mathrm{NaOH} \) and NaCl \( \square \mathrm{H}_{2} \mathrm{CO}_{3} \) and \( \mathrm{NaHCO}_{3} \) HF and KF KCl and NaCl