Which of the following characterizes a covalent bond? A. An electronegativity of greater than 1.7 for one of the atoms
B. An electronegativity difference of greater than 1.7 between two
atoms
C. An electronegativity difference of less than 1.7 between two
atoms
D. An electronegativity of less than 1.7 for one of the atoms

This drawing shows a human body system. what is the primary function of this body system?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Is powdered sports drink ionic or covalent ? 10pts !