How many moles of hno3 are present if 2.50×10−2 mol of ba(oh)2 was needed to neutralize the acid solution?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

In which reaction is precipitation occurring?

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat