Asubstance with a density of 2.70 g/ml occupies a volume of 21.3 ml. what is the mass of the sample

If 10.0 ml of the solution on the right are withdrawn from the 100 ml beaker and diluted again in a similar manner, what is the new concentration? m nacl

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

What produces wave a)sound b) heats c)transfer of energy d)vibrations