An electron in a sodium atom gains enough energy to move from the second shell to the third the sodium atom becomes

What is the temperature of one mole of helium gas at stp?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure