Describe the difference between Homogenous and Heterogenous mixtures. Give me 2 examples of each
What are pure substances?
What are the 2 types of pure substances?
Give an example of each type of pure substance.

For the following labeled picture, match the answer choices to the correct one.

___ Pure substance with 1 element
___ Pure substance with 1 compound
___ Heterogenous mixture with 1 compound and 1 element
___ Homogenous mixture with 2 elements
___ Homogenous mixture with 2 compounds

Find the mass in grams of 1.37x1020 particles of h3po4

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~