Which element reacts with oxygen to create an ionic bond?

calcium

hydrogen

chlorine

nitrogen

What is true when a reaction has reached equilibrium? A. the reaction has stopped. B. the concentration of the products is changing. C. the concentration the products and reactants is constant. D. the concentration of the reactants is changing.

What happens when an object in moves towards us

450 nanometers to meters

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Which state of matter undergoes changes in volume most easily

Which is the molar mass of Calcium?

Which statement best describes the nature of science? Science discoveries using the latest technology are the most valuable. Scientific theories and laws are based on beliefs and popular opinion.

vanadium has an atomic mass of 50.9415 amu. it has two common isotopes. one isotopes has a mass of 50.9440 amu and a relative abundance of 99.75%.

Which of the following could a magnet float over? A. A network solid B. A molecular solid C. A semiconductor D. A superconductor

What are genes a part of?