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Recent content by zeeshma

  1. Z

    Guide and Tips-O Levels

    any activity other than studies is called co-curricular activity like sports,drama,debate etc.
  2. Z

    Guide and Tips-O Levels

    in the prcess of electrolysis when halide is present in higher concentration than it will be discharged (this is what i read in the books) but when i went through the marking scheme even if the solution s dilute halide are bieng discharged what is wrong what is write ...
  3. Z

    Biology; Chemistry; Physics: Post your doubts here!

    convert moles into mass for all salts a ad b can give two moles of ammonia c and d can gve one mole of ammnia find massof all the salts divide mass of moles produd=ced by each salt divided by total mass f the salt and multiply it with mass of salts given in the questin(u already have conv erted...
  4. Z

    Biology; Chemistry; Physics: Post your doubts here!

    convert moles into mass for all salts a ad b can give two moles of ammonia c and d can gve one mole of ammnia find massof all the salts divide mass of moles produd=ced by each salt divided by total mass f the salt and multiply it with mass of salts given in the questin(u already have conv erted...
  5. Z

    Biology; Chemistry; Physics: Post your doubts here!

    have you ever find answers given in marking scheme are wrong ,somtimes(chemistry)?
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