Iron (III) nitrate reacts with enough sodium iodide to produce iron (II) iodide and other products. For the balanced equation shown below if the reaction of 241.86 grams of Fe(NO3)3 proceeds with a 90% yield, how many grams of iron (II) iodide, FeI2 would be produced?

A__ is two or more substances that are together in the same place but are not chemically combined

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.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?