A mixture of F2, O2 and He have mole fractions of 0.25, 0.65, and 0.10, respectively. What is the partial pressure of F2 if the total pressure of the mixture is 3.9 atm?

When the volume and number of particles of a gas are constant which of the following is also constant

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Compare and contrast refraction of light and sound will give brainliest