I need help with my chemistry assignment

Nov 7th, 2015
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Question description

1 an atom of rubidium formsa monatomic ion, which of the following ions does it most likely form

Rb2-

Rb-

Rb2+

Rb+

2 on the basis of elecrtonegatvity which of these pairs of elements is most likely to form monoatomic ions

O and F

Ba and O

Cs and Rb

Na and K

3 which of the following pairs of elements would most likely combine to form a salt

Ca and C

Mg and Cl

In and Fe

Ne and F

4 on the basis of bonding which of the following compounds has the highest boiling point

sodium chloride

glucose

water

alcohol

5 which of the following substances BEST conducts electricity in an aqueous solution

CH3OH

H2O

CO2

KCI

6 on the basis of chemical structure which of the following solids will most easily conduct electricity

FeO2

Cu

NaCl

CaF2

7 which of the following is a monatomic atom

NH4+

Fr+

SO4^2-

F-

8 which of the following is true about NH4+

it is a ployatomic caiton because it has more than one atom and a negative charge

it is a polyatomic caiton because it has more than one atom and a positive charge

it is a polyatmic anion because it has more than one atom and a negative charge

it is a polyatomic anion because it has more than one atom and a positive charge

9 which BEST describes C2O4^2-

10 for the hypothcheticasl compound AX3- which of the following statements is true

A is a metal from group 3A and X is a nonmetal from group 7A

A is a metal from group3A and X is a nonmetal from group5A

A is a metal from group 1A and X is a metal from group 7A

A is a nonmetal from group 3A and X is a metal from group 1A


 

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