What would you observe when an aqueous solution of bromine is added to an aqueous solution of potassium iodide? Explain these observations. 4 marks

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Volume is a measurement of how fast particles of a substance are moving