Which one of the following processes does NOT use Calcium? Group of answer choices

Component of thyroxine

Muscle contraction

Nervous impulses

Blood coagulation

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

How many moles are contained in 5.6 l of h2 at stp

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.