Question

What is the formula for the compound formed by Li+ and S2- ?

Grupo de opciones de respuesta

Li2S2

S2Li

SLi

Li2S

LiS

SLi2

What is the formula for the compound formed by Al3+ and O2- ?
Grupo de opciones de respuesta

O2Al3

Al2O3

AlO

Al3O2

OAl

O3Al2
What is the formula for the compound formed by K+ and Cl- ?
Grupo de opciones de respuesta

K2Cl

K2Cl2

KCl2

ClK2

Cl2K

KCl

ClK
What is the formula for the compound formed by Al3+ and Br- ?
Grupo de opciones de respuesta

AlBr3

Br3Al

Br3Al3

Al3Br

Al3Br3

BrAl3

AlBr

BrAl
What is the formula for the compound formed by Na+ and F- ?
Grupo de opciones de respuesta

F2Na

FNa

Na2F

NaF2

NaF

Na2F2

F2Na2

Answer 1

Li2S

Al2O3

KCl

AlBr3

NaF

Step-by-step explanation:

Li is monovalent (+1), S is divalent (-2)

Al has an oxidation state of +3, Oxygen is -2 2*3=+6 and 3*(-2)=-6

Both K abnd Cl are monvalent (K is +1 and Cl is -1)

AlBr3: Al is +3 and each Br is -1

NaF: both elements have a single charge (+1 for Na and -1 for Br)