What two particles account for almost all of the mass of an atom

A sample of neon gas occupies a volume of 2.8 L at 1.8 atm. What would it's volume be at 1.2 atm?

The positively charged particle in the nucleus of an atom is the 1. neutron 2. magnetron 3. electron 4. proton

As humans begins Continue to change earths environment, which animal species will be most likely to survive?

Which of Newtons law's is sometimes expressed as "for every action there is equal and opposite reaction"

Hydrogen gas reacts with oxygen to produce water. if a student fills a 250-ml flask with hydrogen at stp. what volume of oxygen is necessary for the reaction

An atom in the excited state can have an electron configuration of

4fe (s) + 3o2 (g) →2fe2o3 (s) how many grams of Fe2O3 are produced when 12.0 of iron rusts

Chromium 6 is commonly referred to as?

How does a parallel circuit differ from a series circuit? A. A parallel circuit had one path for electrons, but a series circuit has more then one path. B. A series circuit has one path for electrons, but a parallel circuit has more then one path. C.

Which of the following is an example of potential energy? -none of the above -A person jumping on a trampoline -a book on the shelf -A person running in place