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    Posted 2 years ago in Form 1

    The Scientific Procedure

    What is atomic bombs?

      1       2

    Comments  

    Naima Saad   Posted on 1 year ago

    Right Frankie

    Fankie Peace   Posted on 2 years ago

    Weapons whose explosive output is exclusively from fission reactions are commonly referred to as atomic bombs or atom bombs (abbreviated as A-bombs).

    Posted 2 years ago in Form 2

    Water

    What is water purification?

      0       3

    Comments  

    Frank Majibwene   Posted on 1 year ago

    removing contaminants from pure water

    Beatrice Laizer   Posted on 2 years ago

    Yes just as Kelvin is the removal of contaminants from treated water to make it pure enough for human consumption

    Kelvin Augastine   Posted on 2 years ago

    is the removal of contaminants from treated water to produce drinking water that is pure enough for human cosumption

    Posted 2 years ago in Form 2

    Hydrogen

    what is steam reforming.

      0       2

    Comments  

    Frank Majibwene   Posted on 1 year ago

    is the process of producing hydrogen and carbon monoxide by reacting hydrocarbons with water

    Beatrice Laizer   Posted on 2 years ago

    Is the method that's used in industrial manufacturing of hydrogen

    Posted 2 years ago in Form 57121

    Structure of the Atom and the Periodic Table

    SALTS

     

    Describe how you would prepare dry crystals of zinc two chloride starting with zinc metal powder and dilute hydrochloric acid

      0       1

    Comments  

    Joy Murage   Posted on 2 years ago


    Babra, were you able to get the answer to your question

    Posted 2 years ago in Form 2

    Atomic Structure

    why an atom is no longer regarded as a ssallest particle of matter

      0       3

    Comments  

    Kuluthumu Hamza   Posted on 12 months ago

    bcoz its a smallest particle of matter and and that atom of a given element can show small difference neutral

    Cinderella Modimo   Posted on 12 months ago

    it is a smallest partical of matter

    Zainab Ghasia   Posted on 2 years ago

    because atom is made up of proton electrons and neutrals

    Posted 2 years ago in Form 4

    Organic Chemistry

    what is homologous series

      0       4

    Comments  

    Kuluthumu Hamza   Posted on 12 months ago

    is a series of organic compound related to each other whereby each member differ from next member by CH2

    Frank Majibwene   Posted on 1 year ago

    is a series in organic chemistry in which each group differes from another with CH2

    Fankie Peace   Posted on 2 years ago

    In the field of organic chemistry, a homologous series is a sequence of compounds with the same functional group and similar chemical properties in which the members of the series can be branched or unbranched.

    Zainab Ghasia   Posted on 2 years ago

    is the series of organic compounds which differ from one member to the next by methylene group

    Posted 2 years ago in Form 2

    Hydrogen

    Why hydrogen is collected by upward displacement of air?

      0       7

    Comments  

    Frank Majibwene   Posted on 1 year ago

    Coz its slightly soluble in water

    Blessing Kwembe   Posted on 2 years ago

    As Beatrice

    Beatrice Laizer   Posted on 2 years ago

    Slightly soluble in water

    Rodney Gicheru   Posted on 2 years ago

    This is because it is slightly denser than air

    Posted 2 years ago in Form 3

    Chemical Equations

    what is molar mass and relative atomic mass

      0       3

    Comments  

    Godlove Mexon   Posted on 2 years ago

    What are types of chemical equation

    Henry Macharia   Posted on 2 years ago

    Molar mass and relative atomic mass are one and the same

    Zainab Salim   Posted on 2 years ago

    molar mass is the mass of one mole of a substance

    Posted 2 years ago in Form 2

    Fuels And Energy

    classification of fuel

      0       1

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    Artificial and natural fuels

    Posted 2 years ago in Form 4

    Pollution

    Hello

      0       2

    Comments  

    Anicetha George   Posted on 2 years ago

    HI

    BLENCA Lebux   Posted on 2 years ago

    hello

    Posted 2 years ago in Form 3

    Chemical Equations

    When zinc granules and dilute sulphuric acid are reacted together a gas M is produced.The gas produced is collected by downward displacement of water.use the information to answer the questions below            a.Name the gas M produced  b.how is the gas tested c.Why is the gas collected by downward displacement of water.

      1       3

    Comments  

    Rodney Gicheru   Posted on 2 years ago

    What about the chemical equation

    Rodney Gicheru   Posted on 2 years ago

    It is collected by downward displacement because it is denser less dense than air

    Beatrice Laizer   Posted on 2 years ago

    Gas m is hydrogen
    It's tested by burning with a pop sound
    Because it's less denser than the air

    Posted 2 years ago in Form 2

    Oxygen

    Why oxygen is collected by downward displacement water?

      4       14

    Comments  

    Cinderella Modimo   Posted on 12 months ago

    beacause it is only slightly soluble in water

    Frank Majibwene   Posted on 1 year ago

    its less denser than air

    Nurat Boki   Posted on 1 year ago

    because it is only slighty soluble in water

    Esther Alfa   Posted on 2 years ago

    It is less than denser in air

    Posted 2 years ago in Form 2

    Formula Bonding and Nomenclature

    What is the valency of Argon, Neon and Helium?

      0       3

    Comments  

    Shazma Seif   Posted on 2 years ago

    Hi am shazma

    Beatrice Laizer   Posted on 2 years ago

    They have 0 valencies

    BLENCA Lebux   Posted on 2 years ago

    helium has a valency of 1

    Posted 2 years ago in Form 1

    Laboratory Techniques And Safety

    What is laboratory safety

      0       3

    Comments  

    Cinderella Modimo   Posted on 12 months ago

    are rules kept in the laboratory

    Erica Sangiwa   Posted on 2 years ago

    These are precautions kept in the labaratory

    Josephine Luambano   Posted on 2 years ago

    These are the precautions used in the laboratory room

    Posted 2 years ago in Form 3

    Extractions Of Metals

    Define these terms, dressing, calcination, amalgamation, and electro-refining

      0       0

    Comments  

    Posted 2 years ago in Form 3

    Extractions Of Metals

    Role of co(carbon monoxide) in extraction of oxyge5

      1       0

    Comments  

    Posted 2 years ago in Form 3

    Acids, Bases And Salts

    How salty solution result to rust more explanation plz

      0       1

    Comments  

    Frank Majibwene   Posted on 1 year ago

    when salty solutions are reacted with metals the moister produced after exposure to air will result to rust

    Posted 2 years ago in Form 2

    Formula Bonding and Nomenclature

    Mention 2 types of bonding?

      2       9

    Comments  

    Frank Majibwene   Posted on 1 year ago

    covalent and electrovalent bonding

    Rodney Gicheru   Posted on 2 years ago

    Ionic bond and metallic bond

    Bill Clinton   Posted on 2 years ago

    Electrovalent and covalent bonding

    BLENCA Lebux   Posted on 2 years ago

    dative bonding

    Posted 2 years ago in Form 1

    The Scientific Procedure

    what is an acid

      2       5

    Comments  

    MULLER DON   Posted on 2 years ago

    Acid is the substance which dissolve in water to produce hydrogen ion

    Beatrice Laizer   Posted on 2 years ago

    Addition:an acid is a substance which when dissolved in water produce hydroxyl io n

    Juin DEZINAVEL   Posted on 2 years ago

    Thanks guys

    PR!N€£ - D@ GRIEZZ. #   Posted on 2 years ago

    Is any compound with a Ph less than 7 & produces hydrogen ions & water when it reacts with a metal.

    Posted 2 years ago in Form 1

    Air Combustion, Rusting And Fire Fighting

    what are the factors yhat accelerate rusting

      0       10

    Comments  

    MUSSA MPELLEMBE   Posted on 2 years ago

    O2+H2O+Fe

    Erica Sangiwa   Posted on 2 years ago

    oxygen,water and iron

    Josephine Luambano   Posted on 2 years ago

    Oxygen,water and iron

    Mathew Mjungu   Posted on 2 years ago

    Oxygen ,water and steel

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