Complete the statement by filling the gaps using appropriate term from the terms given in the brackets:
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
(i) An ……….. is drawn in between the reactants and products while writing the equation for a chemical reaction.
(ii) Rusting of iron is a ……….. chemical change.
(iii) The spoiling of food is a chemical change which is recognized from the generation of certain …………. due to it.
(iv) A colourless solution of calcium hydroxide in a test tube turns ………….. on blowing in it through a blow tube for some time.
(v) The white particles of baking soda disappear when put in lemon juice. This means that it is a ……….. change.
(vi) Oxygen is a …………….. in respiration.
(vii) Sodium chloride is …………… compound while hydrogen chloride is compound.
(viii) Electron …………….. is complete in each hydrogen in a hydrogen molecule.
(ix) Chlorine (Cl2) molecule is formed by ………….. of electrons between two chlorine atoms.