7.) A sample of gas has 1.50 moles present in 0.650 L. What would be amount of moles of the gas if the volume increased to 1.2 L?

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.

The pressure in a fluid is affected by which characteristics of that fluid

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)