Which of the following is true about paramagnetic atoms? a.
They are weakly attracted to magnetic fields

b.
Neither of these are true

c.
Both of these are true

d.
They have unpaired electrons

How have the greenhouse gasses increased from the year 2000 to 2018

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?