- Give the names of the following compounds as used in chemistry.
a)CH3COO-
b)H2NCH2CH2NH2
c)C5H5N.(Solved)
Give the names of the following compounds as used in chemistry.
a)CH3COO-
b)H2NCH2CH2NH2.
c)C5H5N.
Date posted: April 4, 2018.
- When 3.1g of a metal carbonate XC03 were heated to constant mass,2.0g of oxide of meta were formed. on reduction of this oxide ,1.6g of...(Solved)
When 3.1g of a metal carbonate XC03 were heated to constant mass,2.0g of oxide of meta were formed. on reduction of this oxide ,1.6g of metal remained .calculate the atomic number of X?
Date posted: April 2, 2018.
- Briefly describe the anatomy of an original lab sheet used in a chemistry laboratory report writing.(Solved)
Briefly describe the anatomy of an original lab sheet used in a chemistry laboratory report writing.
Date posted: March 29, 2018.
- What are transition metals?(Solved)
What are transition metals?
Date posted: March 27, 2018.
- The formula of the compound formed between a trivalent metal X and a divalent non metal Y is
(Solved)
The formula of the compound formed between a trivalent metal X and a divalent non metal Y is
Date posted: March 25, 2018.
- State the type of polymerization involved in the formation of perspex(Solved)
State the type of polymerization involved in the formation of perspex
Date posted: March 21, 2018.
- A certain fertilizer is suspected to be containing nitrate ions. Describe how the presence of nitrate ions can be determined in such fertilizer(Solved)
A certain fertilizer is suspected to be containing nitrate ions. Describe how the presence of nitrate ions can be determined in such fertilizer
Date posted: March 21, 2018.
- Outline 3 major soil chemistry reactions giving appropriate equations involved(Solved)
Outline 3 major soil chemistry reactions giving appropriate equations involved.
Date posted: March 19, 2018.
- Write the structural formula of ethane-1,2-diol(ethylene glycol) and explain why it is a good antifreeze(Solved)
Write the structural formula of ethane-1,2-diol(ethylene glycol) and explain why it is a good antifreeze.
Date posted: March 19, 2018.
- Define the following: (i) Hyperconjugation (ii) Participatory solvent (Solved)
Define the following:
i) Hyperconjugation
ii) Participatory solvent
Date posted: March 19, 2018.
- What will happen when anhydrous calcium chloride is exposed to air for some time?(Solved)
What will happen when anhydrous calcium chloride is exposed to air for some time?
Date posted: March 19, 2018.
- Describe the characteristics of chemical equilibrium(Solved)
Describe the characteristics of chemical equilibrium.
Date posted: March 14, 2018.
- Explain how pure nitrogen can be obtained from a mixture of nitrogen and oxygen.(Solved)
Deals with separation of mixtures under fractional distillation
Date posted: March 13, 2018.
- Describe and explain the laboratory preparation and properties of hydrogen chloride(Solved)
Describe and explain the laboratory preparation and properties of hydrogen chloride
Date posted: March 4, 2018.
- Give the uses of sulphuric (vi) acid(Solved)
Give the uses of sulphuric (vi) acid
Date posted: March 4, 2018.
- Outline the physical properties of hydrogen sulphide.(Solved)
Outline the physical properties of hydrogen sulphide.
Date posted: March 4, 2018.
- Outline the physical properties of dilute sulphuric (vi) acid.(Solved)
Outline the physical properties of dilute sulphuric (vi) acid.
Date posted: March 4, 2018.
- Outline the physical properties of sulphur (iv) oxide.(Solved)
Outline the physical properties of sulphur (iv) oxide.
Date posted: March 4, 2018.
- Outline the uses of sulphur(Solved)
Outline the uses of sulphur
Date posted: March 4, 2018.
- What are the chemical properties of sulphur?(Solved)
What are the chemical properties of sulphur?
Date posted: March 4, 2018.
- What are the allotropes of sulphur?(Solved)
What are the allotropes of sulphur?
Date posted: March 4, 2018.
- What are the chemical properties of hydrochloric acid?(Solved)
What are the chemical properties of hydrochloric acid?
Date posted: March 4, 2018.
- Give the uses of hydrochloric acid.(Solved)
Give the uses of hydrochloric acid.
Date posted: March 4, 2018.
- Outline the physical properties of hydrochloric acid.(Solved)
Outline the physical properties of hydrochloric acid.
Date posted: March 4, 2018.
- Outline the physical properties of hydrogen chloride(Solved)
Outline the physical properties of hydrogen chloride
Date posted: March 4, 2018.
- Outline the uses of chlorine(Solved)
Outline the uses of chlorine
Date posted: March 4, 2018.
- Outline the physical properties of chlorine.
(Solved)
Outline the physical properties of chlorine.
Date posted: March 4, 2018.
- Write an equation that occurs when chlorine water is left in the sun (Solved)
Write an equation that occurs when chlorine water is left in the sun
Date posted: March 4, 2018.
- (i) Give symbols for the following elements: carbon, magnesium, potassium, oxygen (ii) Identify the elements in the following compounds: calcium carbonate, potassium chloride(Solved)
(i)Give symbols for the following elements
Carbon
Magnesium
Potassium
Oxygen
(ii)Identify the elements in the following compounds
calcium carbonate
potassium chloride
Date posted: March 2, 2018.
- Which of the two metals Cu and Mg would be more degraded as a result of storage? Explain(Solved)
Which of the two metals Cu and Mg would be more degraded as a result of storage? Explain
Date posted: March 1, 2018.