Consider the reaction 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s).
If 12.5 g of iron(III) oxide (rust) are produced from 8.74 g of iron, how much oxygen
gas is needed for this reaction?

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?