Which one of these tests would NOT be helpful in determining if a sample is human or animal? a. blood type determined to be AB B. luminol test is performed and a blue glow is observed

c. precipitin test is performed and no coagulation is observed

d. when sample is viewed under a microscope, a large nucleus is viewed in Ted blood cells

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Describe the interaction that occurs between two objects with the same electrical charge.

Why do cells appear different in distilled water than they do in 10% salt water?