Nor

Most popular questions and responses by Nor
  1. science

    1.5173 g of organic iron compound containing FE , C ,H and O is burnt in oxygen gas produced 2.838 g OF carbon dioxide and 0.8122 g of water. In separate experiment to determine the mass % of iron, 0.3355 g of the compound yielded 0.0758 g iron (II) oxide.

    asked on June 28, 2016
  2. Chemistry

    2Li + Cu(NO3) > 2LiNO3 + Cu

    asked on May 15, 2015
  3. physics

    A Foucault pendulum is observed to swing back-and-forth once every 20 seconds. What is its frequency?

    asked on March 22, 2018
  4. physics

    While running a race, Abigail’s heart was beating at 170 beats per minute. What was the period of her heartbeat?

    asked on March 22, 2018
  5. social studies

    what are the recent findings on studies about homework

    asked on May 14, 2008
  6. Science

    For a BOD5 Test: 1) why water samples needed dilution 2) How to check the test accuracy 3) Under what conditions, the water sample needs"seed"? anyone can help, please.

    asked on December 1, 2013
  1. maths

    2,1

    posted on October 10, 2017
  2. Chemistry

    15.625mL

    posted on July 26, 2015