Science BiologyLife processes - Circulatory system 23/4/2020



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CHEMICAL REACTIONS AND EQUATIONS SECTION A 1 Based on the video solve the questions that follows: a (i) A chemical equation represent the _______ that actually takes place. (ii) 1molecule of H2SO4 contains 2 Hydrogen , 1 Sulphur and 4 Oxygen atoms What does 1 molecule of Ca(OH)2 contain ? (iii) Complete the following sentences:  Chemical equation are balanced to satisfy the law of ________  The number and type of all _______must be the same on both sides of the reaction arrow. (iv) Write the following statement in the form of a balanced chemical equation : One atom of sodium combines with one molecule of oxygen to give one molecule of sodium oxide. (v) Construct chemical equation from the following: 2  (vi) Balance the following chemical equation:  ____ N2 + ____ H2 → ____ NH3  ____ KClO3 → ____ KCl + ____ O2  ____ Pb(OH)2 + ____ HCl → ____ H2O + ____ PbCl2  ____ AlBr3 + ____ K2SO4 → ____ KBr + ____ Al2(SO4)3  ____ CH4 + ____ O2 → ____ CO2 + ____ H2O  ____ Na ...
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Identify the features on the outline political map of India, with the help of the following information and write their correct names on the lines marked near them: ·          The place where the Indian National Congress Session was held in December 1920 - Nagpur (Maharashtra) ·          The place where the Indian National Congress Session was held in September 1920 - Calcutta (West Bengal) ·          The place where the Indian National Congress Session was held in 1927 - Madras (Now known as Chennai in the state of Tamil Nadu) ·          The place where the Indian National Congress Session was held in 1929 - Lahore (Pakistan) ·          The place where Gandhiji organised ‘Satyagraha’ in favour of cotton mill workers - Ahmedabad (Gujarat) ·       ...
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WORKSHEET FOR SS-MID TERM

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