What is the partial pressure of water vapor in an air sample when the total pressure is 1 atm, the partial pressure of nitrogen is 0.79 atm, the partial pressure of oxygen is 0.20 atm and the partial pressure of all other gases in air is 0.0044 atm?

The wilson chamber is used to study: direction, speed, and distance of radioactivity the intensity of radiation the appearance of individual atoms all of the above

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Which element is the least metallic between cadmium, silver, zinc, or iron?