Which is an example of a collold? OA. small particles of salt dissolved in water that have mixed evenly to make salt water
OB.
a sample taken from a river that has a layer of sand and silt lying on the bottom when viewed after a few days
milk, which is a liquid containing small-to medium-sized particles that are evenly combined and do not settle
Ос. .

What is the percent by mass of magnesium sulfate in mgso4.7h2o

Agas has an empirical formula ch4. 0.16g of the gas occupies a volume of 240cm^3 what is the molecular formula of the me anyone who !

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.