Which of the following chemical formulas is incorrect? Why?

a) KNO3

b) MgSO3

c) AlP

d) RbO2

e) Li2O

f) Na2ClO3

Predict which of the following chemical compounds would conduct electricity. Why?

a) H2O

b) CO2

c) CaCl2d) NaOH

e) SCl2f) Fe2O3

Name the following chemical compounds.

a) Zn3(PO4)2 zinc phosphate

b) NH4CN ammonium cyanide

c) P2O5 diphosphorus pentaoxided) CuS copper (II) sulfide

e) NO3 nitrogen trioxide

f) Mn(CO3)2 manganese (IV) carbonate

Which of the following chemical compounds is held together by an electrostatic

attraction?a) Dihydrogen monoxide

b) CoCl3c) Potassium selenided) AgCle) Phosphorus trichloridef) Cesium peroxide

Which of the following chemical compounds is a molecule?

a) Tin (IV) oxideb) Silicon dioxide

c) BaSO4

d) Nitrogen trioxidee) MgO

f) CrCO3

Name the nonmetal with only 1 valence electron.

hydrogen

How many electrons are shared in a carbon tetrachloride molecule?

Eight electrons

How many lone pairs are on a water molecule?

Two lone pairs

What element is found in the terminal position in NH3? What element is central?

Terminal - hydrogenCentral - nitrogen

Which illustration represents an ionic bond? Why?

Which of the 7 diatomic molecules have identical Lewis dot structures? Why?

Br I Cl and FThey have the same number of valence

electrons.