Which of the following is true for a reliable scientific source? (5 points) it cites logic. it cites opinions. it cites valid data. it cites common sense.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

you need to have a picture of the atom that way we can answer it

answer; 4 electrons;