The earth is 149.6 million km from the sun. what is this distance also known as?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.