A sample of helium has a volume of 3 liters when the pressure is 500 kPa. What volume does the gas occupy at 300 kPa?

Hydrogen gas and gaseous iodine will react to form hydrogen iodide, as described by the following chemical equation. H2 (g) + I2 (g) ↽--⇀HI (g) Kc (400∘C) = 50.

Tightly bound group of atoms that behaves as a unit and carries a net charge is what?

If the volume of a container of gas is reduced what will happen to the pressure?

What's the difference between Al3 + and N3-

Which part of dalton's atomic theory was disproved by further scientific research?

Water vapor will condense, turn into a liquid, first on the outside surface of which glass

How many moles of oxygen are needed to make 6.50 moles of magnesium oxide?

Which of the following happens during a chemical change? Check all of the boxes that apply. One atom or more changes into atoms of another element. New substances with different properties are formed. Solids, liquids, or gases may form.

What material was added to powdered rock during tuttle and bowen's experiments?

Which of the following statements is true? Selected Answer: D. At least two of the above statements (A-C) are true. Answers: A. Ions are formed by adding or removing protons or electrons. B. Scientists believe that solids are mostly open space. C.