identify as element, compound, homogeneous mixture, heterogeneous mixture...?

Question

HI
tap water
orange juice
Fe
granite
table salt

Answer 1

I'll agree with the first answer with one qualification - the orange juice could be either homogeneous or heterogeneous depending on whether it's just the pure juice (homogeneous) or with pulp (heterogeneous - the composition wouldn't be the same throughout).

Answer 2

Hydrogen iodide is a compound
Tap water is a homogeneous mixture (dissolved fluoride and such)
Orange juice is a homogeneous mixture (suspension)
Fe is iron, an element
Granite is a heterogeneous mixture
Table salt is a compound, NaCl or sodium chloride

Answer 3

HI- compound (hydrogen and iodine)
tap water- homogeneous mixture (any dissolved but NOT chemically bonded trace elements)
orange juice- heterogeneous mixture [it is almost impossible to find perfectly uniform orange juice because of loose pulp and other PHYSICAL impurities]
Fe (iron)- element
granite- heterogeneous mixture (composed of feldspar, quartz, and mica, not uniform throughout)
table salt- compound (NaCl)

Soop Nazi

Answer 4

brass = bomogeneous O2 = element H2O = homgeneous Air = heterogeneous steel = iron and carbon antifreeze = water and polyethylene glycol soda water = water and carbon dioxide natural gas = natural gas