4.
Think and discuss: Why is there an attraction between the two ions in this chemical bond?

These ions are attracted to each other due to its opposite charges. This force of attraction is called an ionic bond because it is formed by the attraction of two atoms with opposite charges.

Explanation:

LOL im answering this question for a gizmo assingment rn

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.