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Explain in detail what causes the transition from an absolute refractory period to a relative refractory period? Why is that important in the functionality of the nervous system 

Calculate 5.1234 + 0.033 ÷ 1.650 and report to the correct number of significant figures.

Convert 12.36 cm 3 to cubic inches (in 3) given that 1 inch = 2.54 cm (exact).

The density of a particular solid is 4.51 g/cm 3 at 25°C. What is its density in kilograms per cubic meter (kg/m 3)?

Convert: –47.1°C = ____________ °F. 

The name of the S O 4 2– ion is

The empirical formula of a salt consisting of Ba 2+ and OH – ions is

The melting point of a certain solid is –27°C. This corresponds to

Which of the following observations is/are examples of chemical change?  1.Iron (Fe) rusts, forming Fe 2O 3. 2.The density of water increases when it changes from a solid to a liquid. 3.Sodium chloride melts at 801 °C.

A property of the system that depends only on its present state and is independent of the pathway is called