The scientific notation 2 x 10-2 has what value?

0.02

0.002

0.2

0.0002

Which occurs when two fluorine atoms react to produce a fluorine molecule? (1) Energy is absorbed as a bond is broken. (2) Energy is absorbed as a bond is formed. (3) Energy is released as a bond is broken. (4) Energy is released as a bond is formed.

An uncontrolled chain reaction takes place during the A) operation of a fission nuclear reactor B) explosion of an atomic bomb C) production of energy by the Earth's Sun D) fusion of light nuclei into heavier nuclei

The form of oxygen that combines three oxygen atoms to each molecule, is found in the stratosphere and shields out harmful UV rays from the sun is:

How much energy is added to change 180g of liquid water to gas at 100 degrees Celsius

Which branch of musicology might study the reasons as to why you like rock music and your friend like country music?

What element does not prefer to react with other elements?

Silicon is lustrous and is a conductor of heat and electricity. Which class of elements could this element belong to? A. Metal B. Non-metal C. Metalliod D. All of the above

What element gains three electrons to fill its valence energy level? s n al c

Determine the speed of sound at 20 oC in (a) air, (b) helium, and (c) natural gas (methane). Express your answer in m/s.

A solution consists of a solute and a solvent mixed together. for the solution in model 1 identify and provide the symbol for the a. solute. b. solvent.