When iron is heated in air it reacts with oxygen to form the compound iron oxide. Iron is a solid and oxygen is a gas. 5 Draw diagrams to show how the atoms are arranged in iron, oxygen and iron oxide in the circles below their names. ... Use the words solid, gas, atom and compound in your answer.
P.s (not sure if it’s right I looked it up oh and I’m in 8th grade k12 as well)
