Why do atoms share electrons in covalent bonds? to attain a noble-gas electron configuration
to become ions and attract each other
to increase their atomic numbers
to become more polar

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.

answer; talc and gypsum;

sure im new too!

explanation:

wher is the rest of the question