How do simple machines relate to compound machines? 1.Simple machines rely on compound machine in order to create work. 2.Compound machines are never used to make simple machines. 3.Compound machines are used to make simple machines. Multiple simple machines make up a compound machine.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.