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1.state whether the substance is molecular, Ionic, Acid or Element. Write the fo

ID: 823366 • Letter: 1

Question

1.state whether the substance is molecular, Ionic, Acid or Element. Write the formula.


1.sodium chloride

2.calcium carbonate

3.nickel (111) bisulfate

4.sodium hydroxide

5.magnesium slfate heptahydrate

6.carbon dioxide

7.acetic acid

8.carbn

9.calcium sulfate

10.sodium silicate

11.calcium bicarbonate

12,magnesium hydroxide

13,potassium chloride

14.sodium thiosulphate pentahydrate

15.sodium hypochlorite

16.sodium carbonate

17.hydrochloric acid

18.potassium nitrate

19.copper (11) sulfate pentahydrate

20. magnesium

21.magnesium oxide

22.potassium iodide

23.sulphuric acid

24.silicon monocarbide

25.iron

26.calcium hydroxide

27.potassium hydroxide


2.What the formula for the following and state whether it is Molecular, Ionic, Acid


1.S8

2.NH4Cl



3.Name a polyatomic ion that has a positive charge.


4. What are the elements that can be multiatomic, show them in this form.


5.What artificially separates the metals and non-metals


6. Name a polyatomic ion that has a positive charge


Explanation / Answer

1.sodium chloride....NaCl(ionic)

2.calcium carbonate...........CaCO3(molecule)

3.nickel (111) bisulfate..........Ni(HSO4)3 (molecule)

4.sodium hydroxide..............NaOH(base)

5.magnesium slfate heptahydrate...............MgSO4.7H2O (molecule)

6.carbon dioxide................CO2(acid)

7.acetic acid...................... CH3COOH (acid)

8.carbn....................C (element)

9.calcium sulfate................CaSO4 (ionic compound)

10.sodium silicate....................Na2SiO3 (base)

11.calcium bicarbonate............Ca(HCO3)2(ionic)

12,magnesium hydroxide...........Mg(OH)2.(base)

13,potassium chloride...................KCl(ionic)

14.sodium thiosulphate pentahydrate ...........Na2S2O3.5H2O (molecule)

15.sodium hypochlorite..........NaOCl(ionic)

16.sodium carbonate....................NaHCO3 (ionic)

17.hydrochloric acid......HCl (acid)

18.potassium nitrate...............KNO3 (ionic)

19.copper (11) sulfate pentahydrate...............CuSO4.5H2O (molecule)

20. magnesium ..........................Mg (element)

21.magnesium oxide...................MgO (molecule)

22.potassium iodide...............KI (ionic)

23.sulphuric acid................H2SO4 (acid)

24.silicon monocarbide...........SiC(molecule)

25.iron.........Fe (element)..

26.calcium hydroxide..................Ca(OH)2 (base)

27.potassium hydroxide..................K(OH) (base)


2.What the formula for the following and state whether it is Molecular, Ionic, Acid


1.S8......(molecule)

2.NH4Cl.........ionic



3.Name a polyatomic ion that has a positive charge........ammonium ion(NH4+)


4. What are the elements that can be multiatomic, show them in this form...........Oxygen(O3).....sulpher(S8)....


5.What artificially separates the metals and non-metals....zig-zag line in the P-block elements i.e, running from boron to polonium


6. Name a polyatomic ion that has a positive charge......ammonium ion(NH4+)