The phase change that is the reverse of sublimation is

a. condensation.

b. melting.

c. vaporization.

d. deposition

What are the similarities between liquids and gases?

Why are the atomic masses for most elements not whole numbers?

vanadium has an atomic mass of 50.9415 amu. it has two common isotopes. one isotopes has a mass of 50.9440 amu and a relative abundance of 99.75%.

Radiation is energy that is A. not transferred at all B, transferred by direct contact of two objects C. transferred by moving air currents D. transferred by electomagnetic waves

A goldsmith melts 12.4 grams of gold to make a ring. The temperature of the gold rises from 26°C to 1064°C, and then the gold melts completely. If gold's specific heat is 0.1291 joules/gram degree Celsius and its heat of fusion is 63.

When 12.4 grams of KBr are dissolved in enough water to create a 170-gram solution, what is the solution's concentration, expressed as a percent by mass?

The Bohr theory can be extended to non-hydrogen one electron ions such as He + and Li2+, in which case the energy depends on the different atomic numbers Z for the respective atom.

Each day the earth spins on its axis. this is known as what?

Is Fe a element or a compound? Is Aluminum a element or a compound? Is HCI a element or a compound? Is Hydrogen Peroxide element or a compound? Is H2 element or a compound? Is NaOH element or a compound?

Which of the following chemical reactions is an oxidation-reduction reaction? Answer WO3 + 3H2 W + 3H2O KNO3 + LiCl LiNO3 + KCl CaSO4 + 2NaCl Na2SO4 + CaCl2 Mg (NO3) 2 + 2HBr MgBr2 + 2HNO3 According to the collision theory and model created to