An electron that is in the highest energy level of an atom and determines the atom's chemical properties is called a (n)

paired electron.

opposite-spin electron.

valence electron.

extra electron.

What is the formula of Chloro fluoro carbon

What happens when nacl (s) is dissolved in water?

The release of a gas from a chemical reaction is very quick. A scientist wants to measure what is released, but in small increments.

Which is an element? ... air ... carbon dioxide ... hydrogen ... water Description

What is the formula for the conjugate base formed by the following acid HCN

Which scientist proposed the "plum pudding" model of the atom?

Find the radius (r) of an aluminum cylinder that is 2.40 cm long and has a mass of 13.0 g . For a cylinder, V=π r 2 l . (The density of aluminum is 2.70 g/c m 3 .)

A mixture of nitrogen gas and oxygen gas has a total pressure of 123.5 kPa. If the nitrogen gas has a partial pressure of 104.5 kPa, what is the partial pressure of the oxygen gas? 6 Ptotal = P1 + P2

Select four of the following that are true of compounds. A They are held together by chemical bonds. B They are made up of a single type of atom. C They can be represented with a chemical formula. D They cannot be broken down by physical processes.

Element named for the scientist known for theory of relativity?