Which mineral is produced when two atoms of iron chemically combine with three atoms of oxygen?
1. garnet
2. pyrite
3. magnetite
4. hematite

Answer is D or 4
Explanation: Hematite is created with two iron atoms to three oxygen atoms, and magnetite, with three iron atoms to four oxygen atoms, which are both iron oxides.

Determine the cause of death for anna garcia

we need additional information in order to determine the cause of death for anna garcia. there are at least 3 things with explanation included as to why we need them are as follows:

there would be some predate medical situations.there would be a report about the cause that why she was there for backache from the hospital.there would be a report about what she injected in her thigh that she suffered from backache.