Which chemical symbol describes an element?

25 In general, for a gas at a constant pressure, A the temperature of the gas is inversely proportional to its volume B. the temperature of the gas is inversely proportional to its pressure C.

During what change of state do atoms or molecules become more ordered

3) At STP, a 22.4-liter sample of NH3 (g) contains the same number of molecules as A) 11.2 L of H2 (g) B) 22.4 L of CO2 (g) C) 33.6 L of CH4 (g) D) 44.8 L of O2 (g)

What are the 3 gases on Table G (of the chemistry reference table) ?

Archaeologists can determine the age of artifacts made of wood or bone by measuring the amount of the radioactive isotope 14C present in the object. The amount of isotope decreases in a first-order process. Of 25.

If a pill has a mass of 0.005g, what is the pills mass using scientific notation?

Neon is a gas made up of only one type of atom. Which term best describes neon?

Formula: C8H9O2N Which element is present in the the greatest proportions by number of particles?

Diatomic molecules of gases are due to ___ bonds.

A hypothetical element consists of 2 isotopes of masses 84.95 amu and 86.95 amu with abundance of 37.1% and 62.9% respectively. What is the average atomic mass?