You consume approximately 560 kilocalories each time you eat a big mac. How many joules of energy would need to be expended to burn off
these calories

The grooves or folds of the brain are called

The element that has the greatest electronegativity is

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