Are the people on this subway moving? the best answer to this question would be yes or no

Give one example of a pure (exact) number and of an estimated (measured) number.

Write balanced nuclear equations for the formation of five elements whose atomic number is between helium (2) and iron (26):

Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, kcos3(s). write the balanced equation. how many moles of oxygen are produced from 12 moles of potassium chlorate