I know what they are. I just have a lot of trouble with them, Can you please tell me whether these are homo or hetero geneous substances.1.Iron Ore2.Quartz3.Granite4.Energy Drink5. Oil-and-vinegar salad dressing6.salt7.rainwater8.nitrogenThank you(:
Iron ore, heterogenous -- it's only part iron, not all iron. Quartz, homogenous. Granite, heterogenous -- it's made out of three different minerals. Energy drink, heterogenous -- it's water plus solids. Oil-and-vinegar salad dressing, heterogenous. Good thing they didn't ask about mayonnaise. Salt, homogenous. Rainwater, the answer should be It depends on where you are, but my guess is that the answer they're looking for is homogenous. Nitrogen, homogenous.
