A helium balloon has a volume of 1.00 x 106 L at ground level with the pressure of 754 mm Hg and a temperature at 22.5 C. What is its volume when it ascends to the stratosphere with scientific instruments, where the temperature is 240 K and the pressure is 76.0 mm Hg?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.