Answer: the ferrous oxideiron quality score than big.
答:氧化亚铁含铁质量分数比大。
2
You could run the reaction, take solid iron and gaseous oxygen, form ironoxide, measure the heat of formation of it, and tabulate it.
你可以进行一个反应,用固态铁和氧气生成氧化铁,测量它生成的热,列成表格。
3
Geologist Gerard Bond noticed that some of the sediment grains were stained with ironoxide, evidence that they originated in locales where glaciers had overrun outcrops of red sandstone.