A researcher added three samples of sodium chloride solution; the volumes were added as follows: 0.2510mL + 1.25mL + 0.2490mL . The total volume should be reported as: 1.7500 2 ) 50 3 ) 1.75 4) 1.8

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree