Which of the following is a scientific question? Group of answer choices

How do mosquitoes affect the transmission of disease?

What stores sell my favorite flavor of gum?

How many lizards live in Paynes Prairie?

Who is the director of the National Science Foundation?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2

•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?