Properties seen when one substance change to another are known as properties

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: