Scelta multipla
Which of the following is the correct chemical formula for ammonium bromide?
124
views
3. Chemical Reactions
Writing Ionic Compounds
Scelta multipla
Which of the following is the correct chemical formula for lead(II) sulfide?
A
PbS2
B
Pb2S3
C
Pb2S
D
PbS
Guida verificata passo dopo passo1
Identify the ions involved in lead(II) sulfide: lead(II) ion is Pb^{2+} and sulfide ion is S^{2-}.
Write the charges of each ion: Pb^{2+} has a charge of +2, and S^{2-} has a charge of -2.
Determine the ratio of ions needed to balance the charges so the compound is electrically neutral.
Since the charges are equal and opposite (+2 and -2), one Pb^{2+} ion will balance with one S^{2-} ion.
Write the chemical formula by combining one Pb^{2+} ion and one S^{2-} ion, resulting in PbS.
Video correlati
Pratica correlata
