Concentrated nitric acid (HNO3) solution has a density of 1.42 g/mL and is 71.0% HNO3 by mass. What is the molarity of concentrated nitric acid?

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

What is the name of the enzyme that forms at the start of transcription?

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products