Scientists inflate a weather balloon similar to the one pictured in figure 14.13 on page 463 of your textbook. on earth, the balloon may have a volume of 2.5 x 104 l at 97.0 kpa and a temperature of 22.0oc. what would be the volume of the same balloon when the temperature drops to 10.0oc, and the pressure drops to 42.0 kpa?

a. 5.5 x 104 l
b. 2.6 x 104 l
c. 1.2 x 104 l
d. none of the above

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride