Calculate the number of moles in the 2.1-L volume of air in the lungs of the average person. Note that the air is at 37.0ºC (body temperature). Use standard atmospheric pressure.

Imagine you have two containers of gas, one labeled gas A and one labeled gas B. Gas A has an average speed of 700 m/s and gas B has an average speed of 1100 m/s. Both containers are being held at the same temperature.

Which statement best describes a physical change

the pressure of 5.0 L of gas increases from 1.50atm to 1240 mmgh. what is the final volume of the gas, assuming no change in moles or temperature?

Why are there 24 hours in 1 day?

Name everyday objects where insulation is used to keep objects warm or cool. If you answer this question you are a angle confirmed.

Enter a chemical equation for LiOH (aq) LiOH (aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that strong acids and bases dissociate completely. Express your answer as a chemical equation.

Percent copper in brass lab

Which statement best describes Rutherford's model of the atom?

If a net force of 5.0 forward acts on a 0.60 kg toy car, what is it's acceleration?

Which physical method can be used for obtaining a sample of salt from a small beaker of salt water? boiling freezing chromatography sorting