Module 5 Exam / 5 A Science / Module 5: Sound and Light All changes saved What affects how sound travels? (Select all that apply.)

wavelength

pressure

medium

temperature

PLEASE SELECT MORE THAN ONE IF YOU DO I WILL GIVE WHEN I GET THE CHANCE

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?