(a)Calcium oxide
(b)filtration
isaacmuthini answered the question on November 22, 2017 at 06:48
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Below is an ionic electronic structure of element X.
(Solved)
Below is an ionic electronic structure of element X.
Write down the:
(i)Period in which X belong
(ii)Formula of its chloride
Date posted:
November 22, 2017
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Answers (1)
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Study the flow chart below and answer the questions that follow (a)Name substances: (i)P (ii)colourless gas (b)Write balanced stoichiometric equation for the reaction:
(Solved)
Study the flow chart below and answer the questions that follow
(a)Name substances:
(i)P
(ii)colourless gas
(b)Write balanced stoichiometric equation for the reaction:
(i)Thermal decomposition of P
(ii)Producing coloourless solution S
(c)Write the ionic equations for the formation of Solid P
(d)Name process B
Date posted:
November 22, 2017
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Answers (1)
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Calculate the normality of a solution containing 3.15g of hydrated oxalic axid (H2C2O4.2H2O) in 250ml of solution,take the molar mass to be 126
(Solved)
Calculate the normality of a solution containing 3.15g of hydrated oxalic axid (H2C2O4.2H2O) in 250ml of solution,take the molar mass to be 126
Date posted:
November 21, 2017
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Answers (1)
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State any two uses of hydrogen gas in the fertilizer industry
(Solved)
State any two uses of hydrogen gas in the fertilizer industry
Date posted:
November 20, 2017
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Answers (1)
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State the two types of elemental analysis and their definitions.
(Solved)
State the two types of elemental analysis and their definitions.
Date posted:
November 20, 2017
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Answers (1)
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State the Lewis concept
(Solved)
State the Lewis concept
Date posted:
November 20, 2017
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Answers (1)
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Explain how an increase in pressure would affect equilibrium position
(Solved)
Explain how an increase in pressure would affect equilibrium position
Date posted:
November 19, 2017
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Answers (1)
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Define entropy
(Solved)
Define entropy
Date posted:
November 18, 2017
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Answers (1)
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State Pauli exclusion principle
(Solved)
State Pauli exclusion principle
Date posted:
November 18, 2017
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Answers (1)
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State aufbau principle
(Solved)
State aufbau principle
Date posted:
November 18, 2017
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Answers (1)
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Calculate the molarity of an aqueous solution containing 3g of urea (molar mass=60) in 250g of H2O
(Solved)
Calculate the molarity of an aqueous solution containing 3g of urea (molar mass=60) in 250g of H2O
Date posted:
November 18, 2017
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Answers (1)
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Name the first 10 elements of the periodic table of elements in their correct order.
(Solved)
Name the first 10 elements of the periodic table of elements in their correct order.
Date posted:
November 17, 2017
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Answers (1)
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The diagram below was used to prepare an alkane in the laboratory
(Solved)
The diagram below was used to prepare an alkane in the laboratory
(i)Write the formular of solid X
(ii)Explain why calcium oxide is added to the mixture above
(iii)Write a balanced equation for the reaction that occurs in the flask
Date posted:
November 16, 2017
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Answers (1)
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Study the set up below and answer questions below
(Solved)
Study the set up below and answer questions below
State and explain the observations that would be made when the circuit is completed.
Date posted:
November 16, 2017
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Answers (1)
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Starting with copper metal describe how a sample of crystals of copper 2 chloride may be prepared
(Solved)
Starting with copper metal describe how a sample of crystals of copper 2 chloride may be prepared
Date posted:
November 16, 2017
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Answers (1)
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Metals are ductile. Explain
(Solved)
Metals are ductile.Explain
Date posted:
November 15, 2017
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Answers (1)
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Explain the change in mass that occurs when solid copper(II)nitrate is heated in open crucible.
(Solved)
Explain the change in mass that occurs when solid copper(II)nitrate is heated in open crucible.
Date posted:
November 15, 2017
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Answers (1)
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State Bohr's assumptions to his model
(Solved)
State Bohr's assumptions to his model
Date posted:
November 12, 2017
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Answers (1)
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Which catalyst is used in experiment of manufacture of oxygen?
(Solved)
Chemistry
Date posted:
November 12, 2017
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Answers (1)
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Distinguish between anhydrous and hydrated salts.
(Solved)
Distinguish between anhydrous and hydrated salts.
Date posted:
November 12, 2017
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Answers (1)