A student was assigned the task of determining the identity of an unknown liquid. The student weighed a clean, dry 250-ml erlenmeyer flask. The student completely filled the flask with water. He then proceeded to weigh the flask containing the water. Mass of 250-ml erlenmeyer flask: 78. 639 g mass of 250-ml erlenmeyer flask and water: 327. 039 g assuming the density of water is 1. 00 g/ml at ambient temperature, what is the exact volume (in ml) of the 250-ml erlenmeyer flask?.

Berikan satu kepentingan terhadap komposisi udara di atmosfera bumi

Which will you likely have to provide on a college applications. a.) personal information, b.) parents level of education, c.) career plans, d.) employment history

Apopulation of deer mice was introduced into a desert ecosystem. being dark-colored, the deer mice stood out in the sand and were easy prey for predators. over a few years, the color of the mice changed from dark brown to light brown. what role does natural selection play in this example? a. the change of color camouflaged them, which them hunt better. b. the change of color enabled them to regulate their body temperature. c. the change of color allowed them to hide better from predators. d. the change of color made their bodies tolerant to the harsh desert sand. e. the change of color allowed them to deflect the excessive heat.