Based on Dalton's atomic theory, what do atoms consist of?

Compounds

Elements

Molecules

Particles

Can sound be described as kinetic energy

Which of these pure substances has the highest vapor pressure at 1 atm? Note: Vapor Pressure is inversely related to IMF strength, O CH4 O NH3 PH3 SIH4

Which subatomic particles are found in the nucleus of an atom of beryllium?

How many atoms are in a sample of chromium with a mass of 13 grams?

How are metallic bonds different from ionic and covalent bonds?

Which of these is produced when fossil fuels are burned? A) oxygen Eliminate B) nitrogen C) hydrogen D) carbon dioxide

Predict the sign of ΔSsys for each of the following processes. Which are positive? (a) Gasoline vapors mix with air in a car engine. (b) Hot air expands. (c) Humidity condenses in cold air.

A system consists of two components, each of which must activate if the system is to activate. One component has a reliability of. 99. The other has a reliability of. 95. The components are independent of one another with respect to reliability.

Which of the following energy level changes for an electron is most energetic? 3 → 2 5 → 2 4 → 2

Is baking soda a element compound homogeneous mixture or heterogeneous mixture?