Which of the following of the following is the same for both hydrogen and potassium ? a. atomic mass b. total mass of neutrons c. number of valence electrons d. number of filled energy levels

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?