In a reaction involving I− , I2 and starch, you observe the rate at which a blue color appears over time. Which statement is true?
You are observing the appearance of products over time.
You are observing the appearance of the transition state over time.
You are observing the disappearance of reactants over time.
You are observing the disappearance of products over time.

Non renewable resources like petroleum eventually

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

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?