Which of the following is NOT a presumptive blood test that investigators might use to identify blood at a crime scene?

•Kastle-Meyer
•Luminol
•Phenolphthalein reaction
•Blood Typing Test

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.