In supersonic flights, molecules break apart and react chemically. Which of
the following safety features protects the plane?
O
A. A heat shield
O B. A more aerodynamic design
O C. An extra oxygen tank
O
D. An extra engine for additional thrust

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull