Why do I need to wear Safety Goggles to pour water into a beaker in school

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which of the following words describe the reality that the universe looks the same from various perspective

What is the chemical name of the compound ti2o3?