Potassium and iodine have formed a bond. prior to this the potassium gave up an electron. it became a

positive ion

neutral atom

negative ion

shared ion

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction