What is the pressure of 2.0 mol nitrogen (N2) gas in a 0.5 L container at 310

K?

Which statement describes the motion of the sun? Group of answer choices The sun rotates at the same rate throughout. The sun does not rotate at its poles. Different parts of the sun rotate at different rates. The sun does not rotate at its equator.

A student observes that an element is shiny, bends easily, and can conduct electricity. What type of element is the student most likely observing? Gas Metal Metalloid Nonmetal

Elements whose names end with âium are usually metals; sodium is one example. Identify a nonmetal whose name also ends with âium.

What happens when chemical bonds break and new bonds form

A mixture of n2 (g) and h2 (g) has mole fractions of. 40 and. 60, respectively. what is the density of the mixture at 1 bar and 0 degrees celsius?

how many energy levels (shells) does an atom of oxygen have? How do you know this by looking at the periodic table?

A student needs to use 0.575 moles of sodium chloride in an experiment. How many grams should he mass out?

Which of the following seperation methods is used to seperate plant pigments? Filtration, Chromatography, fractional distillation, simple distillation?

If a fast moving car making a loud noise approaches and moves past the person what will happen as the distance between the two increases?

Which of the following would be an example of a trophic relationship? Select all that apply. photosynthetic plankton respiring oxygen into the ocean small marine life feeding on the algae and plankton that have descended to the ocean floor a