Atomic number is the number of protons in the atom while mass number is the sum of the protons and neutrons in the atom.
chrispohmomanyi answered the question on October 19, 2017 at 04:29
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Define an atom
(Solved)
Define an atom
Date posted:
October 19, 2017
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Answers (1)
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What is thermal cracking?
(Solved)
What is thermal cracking?
Date posted:
October 18, 2017
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Answers (1)
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Using a detailed explanation, give a reason as to why brass is not in the periodic table
(Solved)
Using a detailed explanation, give a reason as to why brass is not in the periodic table
Date posted:
October 18, 2017
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Answers (1)
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Give the uses of water as a reagent in the laboratory.
(Solved)
Give the uses of water as a reagent in the laboratory.
Date posted:
October 16, 2017
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Answers (1)
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State two factors that may alter the ionization energy of elements.
(Solved)
State two factors that may alter the ionization energy of elements.
Date posted:
October 14, 2017
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Answers (1)
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Define the term isotope
(Solved)
Define the term isotope
Date posted:
October 14, 2017
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Answers (1)
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What is a flame?
(Solved)
What is a flame?
Date posted:
October 13, 2017
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Answers (1)
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What do you understand by the term half-life of a radioisotope
(Solved)
What do you understand by the term half-life of a radioisotope
Date posted:
October 12, 2017
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Answers (1)
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State two observations made when sodium carbonate crystals are dropped into a beaker containing dilute hydrochloric acid.
(Solved)
State two observations made when sodium carbonate crystals are dropped into a beaker containing dilute hydrochloric acid.
Date posted:
October 11, 2017
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Answers (1)
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Give a reason why bakers must use baking powder when making cakes and doughnuts
(Solved)
Give a reason why bakers must use baking powder when making cakes and doughnuts
Date posted:
October 11, 2017
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Answers (1)
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State the products formed when a dillute acid reacts with a carbonate
(Solved)
State the products formed when a dillute acid reacts with a carbonate
Date posted:
October 11, 2017
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Answers (1)
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Write a well balanced chemical equation to show the reaction between Magnesium and dilute Sulphuric acid
(Solved)
Write a well balanced chemical equation to show the reaction between Magnesium and dilute Sulphuric acid
Date posted:
October 11, 2017
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Answers (1)
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Give two tests for acidic substances
(Solved)
Give two tests for acidic substances
Date posted:
October 11, 2017
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Answers (1)
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Give the colour observed when a litmus paper is dropped into the solutions of the following (i)Distilled water (ii)sour milk (iii)Lemon juice
(Solved)
Give the colour observed when a litmus paper is dropped into the solutions of the following
i)Distilled water
ii)sour milk
iii)Lemon juice
Date posted:
October 11, 2017
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Answers (1)
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Distinguish between an acid and a base
(Solved)
Distinguish between an acid and a base
Date posted:
October 11, 2017
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Answers (1)
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Give two application of bases in the society
(Solved)
Give two application of bases in the society
Date posted:
October 11, 2017
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Answers (1)
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A solution of hydrogen chloride gas can conduct an electric current, while that hydrogen chloride in methylbenzene does not conduct . Explain
(Solved)
A solution of hydrogen chloride gas can conduct an electric current, while that hydrogen chloride in methylbenzene does not conduct. Explain
Date posted:
October 8, 2017
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Answers (1)
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Describe the non-luminous flame of Bunsen burner and give a reason why it is preferred when heating substances in laboratory
(Solved)
Describe the non-luminous flame of Bunsen burner and give a reason why it is preferred when heating substances in laboratory
Date posted:
October 8, 2017
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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...
(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 enviroment that may result from the extraction of sodium
Date posted:
October 6, 2017
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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...
(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
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Answers (1)