How many moles of SF6 are in 18.6g

The pressure of a sample of helium in a 1.0-L container is 0.857 atm. What is the new pressure if the sample is placed in a 0.5-L container? (Assume the temperature is constant.) 0.143 atm 0.429 atm 1.38 atm 1.71 atm

Choose the incorrect answer below concerning absolute zero. lowest possible temperature theoretical temperature at which gas molecules have no kinetic energy is equal to 0°C is equal to 0 K

Molality is a unit of concentration that measures the moles of solute per liter of solution. liter of solvent. kilogram of solution. kilogram of solvent.

Which type of wave vibrates in a direction parallel to the motion of the wave

Which of the following describes volume? A. The number of particles or amount of matter B. Amount of mass contained in a certain space C. How fast the particles of matter are moving D. The amount of space that matter occupies

What is the law of conservation of energy? A) energy can only be destroyed B) energy will always be renewed. C) energy cannot be created of destroyed. D) energy can never change forms.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.

Silver tarnishes when it comes into contact with hydrogen sulfide in the air. physical property or chemical property

When a volcanic irruption adds new rock to existing land and forms new islands is it considered destructive?

How many neutrons are in Cesium-130 (Cs) ? 55 75 130 185