You place a balloon in a closed vacuum chamber at STP. You reduce the pressure by half. What happens to the balloon?

a. It doubles in volumes.

b. It stays the same.

c. It reduces the size by half.

Which of the following leads to a lower rate of diffusion? A. Heated gas B. Lower molar mass of particles C. Higher velocity of particles D. Reduced temperature

1. Identify the set of oxides that consist of an acidic, basic, a neutral and an amphoteric oxide respectively a. SO3, CaO, H2O, Al3O3 b. SO3, MgO, NO, Na2O c. N2O, K2O, H2O, ZnO d. CO2, CO, SO2, Al2O 2. Reactions of alkene are mostly a.

What is Sn on the periodic table of elements

In their elemental forms, the halogens are Select one: a. strong oxidizing agents. b. strong reducing agents. c. strong acids. d. strong bases. e. amphoteric.

A mixture of iodine and sulphur crystal can be separated by treating with what?

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?

A synonym for dwindled

A material that cannot be broken down farther by chemical means