Write at the write of the substance if the substance is a diatomic molecule, an atom, a solution, a suspension a colloid or an element 1- shaving cream
2- hot cocoa
3- water from swimming pool
4- water from the faucet
5- ocean water in the middle eats with very high salinity
6- city air
7- forest air
8- helium (He)
9- orange juice with pulp
10- cranberry juice
11- pepsi
12- meringue

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?