Oxide and Correct Formulas

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16. Pure nitrogen combines directly with an active metal to form a - Nitride
17. In a sample of solid Al(NO3)3, the ratio of aluminum ions to nitrate ions is - 1:3
18. In a sample of solid calcium phosphate Ca3(PO4)2, the ratio of calcium ions to phosphate ions is - 3:2
19. What is the total number of atoms in (NH4)2SO4?
- 15
20. What is the total number of oxygen atoms present in one unit of Mg(ClO3)2? - 6
21. What is the total number of atoms of oxygen in the formula Al(ClO3)3.6H2O? - 15
22. Write the correct formulas for the following binary ionic compounds. Compounds| Formulas|
Lithium fluoride| LiF|
Calcium oxide| CaO|
Aluminum nitride| AlN|
Beryllium Chloride| BeCl2|
Potassium iodide| KI|
Aluminum oxide| Al2O3|

23. Write the correct formulas for the following binary molecular compounds. Compounds| Formulas|
Carbon monoxide| CO|
Boron tribromide| BBr3|
Sulfur hexafluoride| SFl3|
Carbon dioxide| CO2|
Carbon tetrabromide| CBr4|
Nitrogen dioxide| NO2|

24. Write the correct formulas for the following compounds that contain polyatomic ions. Compounds| Formulas|
Sodium hydroxide | NaOH|
Potassium nitrate | KN03|
Magnesium sulfate| Mg2SO4|
Aluminum phosphate| AlPO4|
Aluminum nitrate | Al(NO3)3|
Ammonium nitrate| NH4NO3|

25. Name each of the following binary ionic compounds.
Formulas| Name|
NaBr| Sodium Bromide|
MgS| Magnesium Sulfide|
CaO| Calcium Oxide|
MgCl2| Magnesium Chloride|
AlF3| Aluminum fluoride|
CaI2| Calcium Iodide|

26. Name each of the following binary molecular compounds.
Formulas| Name|
O2F2| Oxygen Diflouride|
SiF4| Silicon Tetraflouride|
S4N4| Sulfur Tetranitride|
SF2| Sulfur Diflouride|
H2S| Hydrogen sulfide|
P4O10| Phosphorus decoxide|

27. Name each of the following compounds.
Formulas| Name|
Ca(NO3)2| Calcium Nitrate|
KOH| Potassium hydroxide|
MgCO3| Magnesium carbonate|...
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