Describe the type of energy a ball sitting on the floor has.

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?