Margarita set up three vials on a hot plate. She poured the same amount of liquid into each of the vials, and then she turned on the hot plate. Which event
could be a significant source of error in her experiment?

What is the molar mass of a gas that has density of 2.054 g/l

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg