The respiratory system is responsible for the exchange of oxygen with what gas?

nitrogen

hydrogen

water vapor

carbon dioxide

A 3.60 l gas sample is at a pressure of 95.5 kpa and a temperature of 25.0°c. if the gas sample weighs 6.10 g, calculate the molar mass of the gas.

You make two dilutions. You take 83.52 mL of the stock solution and dilute to 500.0 mL to make Solution #1. You then add 52.27 mL of Solution #1 to 46.77 mL of water to make Solution #2.

You shake a can of soda and open it, which cause the pressure to decrease. what happens to the volume of the CO2. the soda

Which of the following traits are heritable? a. favorite foods b. playing the flute c. hair color d. going to bed early

Which of these has an exoskeleton? a. tree b. deer c. elephant d. crab?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat

Flammable materials like alcohol should never be dispensed or used near True or False