Please classify the following substances as a heterogenous or homogenous mixture.1. iron ore2. quartz3. granite4. energy drink5. salt6. rainwater7. nitrogenPlease classify the following as a physical or chemical change.1.metal rusting2. gas pressure increasing3. liquid evaporating4. food digesting (chemical, right??)
You want us to do your homework for you? No, I think I'll take a different tack. Homogeneous: same composition throughout the sample. Either an element, a compound or a thoroughly mixed mixture, like a solution. Heterogeneous: varied composition throughout the sample. Applies to uneven mixtures. Physical change: changes only the appearance, shape or size of the substance, without changing what the substance is made of. Chemical change: changes the actual identity of the substance.elements into compounds, compounds into elements and the like.
Please classify the following substances as a heterogenous or homogenous mixture. 1. iron ore- Homo 2. quartz - Homo 3. granite - Hete 4. energy drink - Hete 5. salt - Homo (unless iodized) 6. rainwater - Hete 7. nitrogen - Homo Please classify the following as a physical or chemical change. 1.metal rusting - Chem 2. gas pressure increasing - Phys 3. liquid evaporating - Phys 4. food digesting (chemical, right?) - Chem
