A solution of sodium chloride was made up using 75cm of water and 30g of iron chloride.
Calculate the concentration of the solution, in g/dm”, when all of the sodium chloride
dissolves in the water.

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Compare and contrast refraction of light and sound will give brainliest