ANIONS AND CATIONS LIST

ANIONS AND CATIONS LIST

Chemistry   13:22

simple ions:
Hydride	H-	Oxide	O2-
Fluoride	F-	Sulfide	S2-
Chloride	Cl-	Nitride	N3-
Bromide	Br-
Iodide	I-
Oxoanions:
Arsenate	AsO43-	Phosphate	PO43-
Arsenite	AsO33-	Hydrogen phosphate	HPO42-
		Dihydrogen phosphate	H2PO4-
Sulfate	SO42-	Nitrate	NO3-
Hydrogen sulfate	HSO4-	Nitrite	NO2-
Thiosulfate	S2O32-
Sulfite	SO32-
Perchlorate	ClO4-	Iodate	IO3-
Chlorate	ClO3-	Bromate	BrO3-
Chlorite	ClO2-
Hypochlorite	OCl-	Hypobromite	OBr-
Carbonate	CO32-	Chromate	CrO42-
Hydrogen carbonate or Bicarbonate	HCO3-	Dichromate	Cr2O72-
Anions from Organic Acids:
Acetate	CH3COO-	formate	HCOO-
Others:
Cyanide	CN-	Amide	NH2-
Cyanate	OCN-	Peroxide	O22-
Thiocyanate	SCN-	Oxalate	C2O42-
Hydroxide	OH-	Permanganate	MnO4-

Common Cations: (ions grouped by charge)

Name	Formula	Other name(s)
Ammonium	NH4+
Barium	Ba+2
Calcium	Ca+2
Chromium(II)	Cr+2	Chromous
Chromium(III)	Cr+3	Chromic
Copper(I)	Cu+	Cuprous
Copper(II)	Cu+2	Cupric
Iron(II)	Fe+2	Ferrous
Iron(III)	Fe+3	Ferric
Hydrogen	H+
Hydronium	H3O+
Lead(II)	Pb+2
Magnesium	Mg+2
Manganese(II)	Mn+2	Manganous
Manganese(III)	Mn+3	Manganic
Mercury(I)	Hg2+2	Mercurous
Mercury(II)	Hg+2	Mercuric
Nitronium	NO2+
Strontium	Sr+2
Tin(II)	Sn+2	Stannous
Tin(IV)	Sn+4	Stannic

Acid Base Worksheet

Acid Base Worksheet

Chemistry   10:40

Here are the pointer to review for upcoming midterm test:

1. Kinetic theory of matter:

    -  The properties of solid, liquid and gas based on the kinetic theory of matter;

    -  gas pressure;

    -  dissolving process;

    -  diffusion;

2. Acids and Bases

    -  Acids and Bases properties;

    -  Indicators;

    -  pH;

    -  Examples of acids/bases

Workout these following question in your "EXERCISE BOOK" only. Submit it after Chemistry Test (Monday, March 10) on Mr. Markus desk.

1. State the characteristics/properties of acids and bases (4 characteristic)                                 [8]

ACIDS PROPERTIES	BASES PROPERTIES

    2. Fill in the blank in the table below, if P = alkali, Q = acid. The litmus paper turns in color.

Solution	P	Q
red litmus paper
blue litmus paper

                                                                                                                                                   [4]

       What are the other acid base indicators instead the litmus paper? [2]

3.  Sweat from the skin is slightly acidic and reacts with jewellery containing nickel.

(i)                  Suggest how you could find out the pH of the sweat on the surface of your skin. [2]

  

(ii)               Which one of the values represents a pH which is slightly acidic.

Put a ring around the correct answer. [1]

  

pH 2                               pH 6                       pH 7                      pH 8                      pH 13

4. A solution of perfume has a strong smell.

A beaker of perfume solution is put in the corner of a room which is free of draughts. At first, the girl by the closed window cannot smell the perfume. After 30 seconds she smells the perfume.

Use the kinetic particle theory to explain these facts. [2]

Balancing Chemical Equations Worksheet

Balancing Chemical Equations Worksheet

Type of Reaction and Balancing Chemical Equations   10:35

Here are pointers to review for midterm test:
1. Exothermic and Endothermic reaction: 
    -  The principle of exothermic and endothermic reaction/process;
    -  describing exo endo reaction in the term of breaking bonds and forming bonds;
    -  exo-endo process in the changing state of matter
    -  The examples of exo endo
2. Chemical Equations: Balancing Chemical Equations
    -  describing chemical equations: the signs in equations
    -  balance a chemical equations

Balance the following equations.

1         1.  ___C₂H₃Cl   + ___O₂ à ___CO₂  + ___H₂O   + ___HCl

2         2.      ___(NH₄)₂Cr₂O₇ à ___NH₃  + ___H₂O  + ___Cr₂O₃  + ___O₂

3         3.      ___Al  + ___NaOH  + ___H₂O à ___NaAl(OH)₄  + ___H₂

4         4.      ___NH₄Cl   + ___Ca(OH)₂ à ___CaCl₂  + ___NH₃   + ___H₂O

5         5.      ___Al  + ___NH₄ClO₄ à ___Al₂O₃  + ___AlCl₃  + ___NO  + ___H₂O

6         6.      ___H₂SO₄  +  ___NaHCO₃ à ___Na₂SO₄    + ___CO₂    + ___H₂O

7         7.      _____ NaOH (aq) + _____ H₂SO₄ (aq) → _____ H₂O (l) + _____ Na₂SO₄ (aq)

8         8.      _____ K (s) + _____ H₂O (l) → _____ KOH (aq) + _____ H₂ (g)

9.      ____ H₂ + ____ O₂ à ____ H₂O

10.  ____ Pb(OH)₂ + ____ HCl à ____ H₂O + ____ PbCl₂

11.  ____ AlBr₃ + ____ K₂SO₄ à ____ KBr + ____ Al₂(SO₄)₃

12.  ____ CH₄ + ____ O₂ à ____ CO₂ + ____ H₂O

13.  ____ C₈H₁₈ + ____ O₂ à ____ CO₂ + ____ H₂O

14.  ____ FeCl₃ + ____ NaOH à ____ Fe(OH)₃ + ____NaCl

15.  ____ Ag₂O à ____ Ag + ____O₂

IGCSE Chemistry: Chemical Equilibria Quiz

IGCSE Chemistry: Chemical Equilibria Quiz

IGCSE Chemistry   08:16

 Chemical Equilibria Quiz

IGCSE Nuclear Physics Quiz

IGCSE Nuclear Physics Quiz

PHYSICS   07:11

 Quiz: Nuclear Physics (IGCSE Physics)

Hydrocarbons Review

Hydrocarbons Review

IGCSE Chemistry   06:51

Hydrocarbons Review

Workout the following questions 

IGCSE Chemistry-Cracking Hydrocarbons Homework

IGCSE Chemistry-Cracking Hydrocarbons Homework

IGCSE Chemistry   15:17