How do you determine the valence electrons? Ex. Li=?, Be=?, N=?, O=?, F=? (List the charges)

A glass flask has a volume of 500 mL at a temperature of 20° C. The flask contains 492 mL of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 500 mL reference mark.

For a particular reaction, ΔH° is 34.2 kJ and ΔS is 99.2 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?

What kind of cell has a negative cell voltage

A wide flat zone of small particles that orbit a planet. what is it

What are 4 basic functions of a basic computer?

Recycling one ton of paper is the equivalent of approximately how much of the following? a.) all of the below b.) 460 gallons of oil c.) 6950 gallons of water d.) 590 pounds of air pollution

What is the best way to compare a concentrated solution to a dilute solution, given the same volume of solution? A. The concentrated solution has less solute than the dilute solution. B.

What is the mass number of an isotope

A sample of sodium reacts completely with 0.284 kg of chlorine, forming 468 g of sodium chloride. What mass of sodium reacted?

Is it true or false that gamma rays have no mass and no electrical charge