i)Used in the manufacture of detergents.
Ii)Ammonia is used in the manufacture of nitrogenous fertilizers
Githiari answered the question on October 11, 2017 at 12:22
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Date posted: October 8, 2017. Answers (1)
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Date posted: October 8, 2017. Answers (1)
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Sodium is highly electropositive,hence it can only be isolated by electrolysis
(a)Name the major ore from which sodium is extracted
(b)why should ore be in molten form before electrolysis
(c)Give the detrimental effect on the enviroment that may result from the extraction of sodium
Date posted: October 6, 2017. Answers (1)
- Sodium is highly electropositive,hence it can only be isolated by electrolysis(a)Name the major ore from which sodium is extracted(b)why should ore be in molten...(Solved)
Sodium is highly electropositive,hence it can only be isolated by electrolysis
(a)Name the major ore from which sodium is extracted
(b)why should ore be in molten form before electrolysis
(c)Give the detrimental effect on the environment that may result from the extraction of sodium
Date posted: October 6, 2017. Answers (1)
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(a)Patients with heart burn are advised to take milk of magnesia.Explain
(b)Write an ionic equation between (ii)hydroxide and dillute sulphuric (vi)acid
Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
- (a)Phosphorus has melting point of 40o and 590o.Explain
(B)Why is phosphorus stored under water ...(Solved)
(a)Phosphorus has melting point of 40o and 590o.Explain
(B)Why is phosphorus stored under water
Date posted: October 6, 2017. Answers (1)
- When lead nitrate and sodium sulphate react, a white precipitate is formed. (i)Identify the white precipitate.(ii) Write an ionic equation of the reaction(Solved)
When lead nitrate and sodium sulphate react, a white precipitate is formed. (i)Identify the white precipitate.(ii) Write an ionic equation of the reaction
Date posted: October 5, 2017. Answers (1)
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Date posted: October 5, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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Explain one way in which sulphur (IV) oxide is a pollutant
Date posted: October 4, 2017. Answers (1)
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The molar enthalpy of neutralisation between hydrochloric acid and ammonia solution was found to be -52.2 kj mol4, while that of hydrochloric acid and sodium hydroxide was 57.1 kJ mol-1. Explain the difference in these values.
Date posted: October 4, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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Element M reacts with water at room temperature to produce 0.2 dm3 of gas. Determine the mass of M which was reacted with water. (Molar gas volume at room temperature is 24 dm3, Relative atomic mass of M = 7).
Date posted: October 4, 2017. Answers (1)
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A solution was made by dissolving 8.2g of calcium nitrate to give 2 litres of solution. (Ca = 40.0; N = 14.0; O = 16.0).
Determine the concentration of nitrate ions in moles per litre
Date posted: October 4, 2017. Answers (1)
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When 15cm^3 of a gaseous hydrocarbon, P, was burnt in 100cm^3 of oxygen, the resulting gaseous mixture occupied 70cm^3 at room temperature and pressure. When the gaseous mixture was passed through potassium hydroxide solution, its volume decreased to 25cm^3.
(a) What volume of oxygen was used during the reaction?
Date posted: October 4, 2017. Answers (1)
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Alloy
Use(Solved)
Name one alloy of copper and state its use.
Alloy
Use
Date posted: October 4, 2017. Answers (1)
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Name two ores from which copper is extracted
Date posted: October 4, 2017. Answers (1)
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A certain mass of gas occupies 146 dm^3 at 291 K and 98.31 kPa. What will be its temperature if its volume is reduced to 133 dm^3 at 101.325 kPa?
Date posted: October 4, 2017. Answers (1)